| 2013-02-28 17:55:00 |
Tyson Tan |
bug |
|
|
added bug |
| 2013-02-28 18:00:17 |
Brad Figg |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2013-02-28 18:00:19 |
Brad Figg |
tags |
|
quantal |
|
| 2013-02-28 18:47:38 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
Medium |
|
| 2013-03-02 07:36:05 |
Tyson Tan |
tags |
quantal |
apport-collected package-from-proposed quantal running-unity third-party-packages |
|
| 2013-03-02 07:36:07 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 64-bit.
2) The version of the package used
linux-image-3.5.0-26-generic
3) What you expected to happen
Audio being played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous one did not.
I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal. |
1) The release of Ubuntu using
Ubuntu 12.10 64-bit.
2) The version of the package used
linux-image-3.5.0-26-generic
3) What you expected to happen
Audio being played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous one did not.
I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal.
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-02 07:36:08 |
Tyson Tan |
attachment added |
|
AlsaInfo.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553684/+files/AlsaInfo.txt |
|
| 2013-03-02 07:36:11 |
Tyson Tan |
attachment added |
|
BootDmesg.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553685/+files/BootDmesg.txt |
|
| 2013-03-02 07:36:13 |
Tyson Tan |
attachment added |
|
CurrentDmesg.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553686/+files/CurrentDmesg.txt |
|
| 2013-03-02 07:36:15 |
Tyson Tan |
attachment added |
|
Dependencies.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553687/+files/Dependencies.txt |
|
| 2013-03-02 07:36:17 |
Tyson Tan |
attachment added |
|
Lspci.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553688/+files/Lspci.txt |
|
| 2013-03-02 07:36:20 |
Tyson Tan |
attachment added |
|
Lsusb.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553689/+files/Lsusb.txt |
|
| 2013-03-02 07:36:22 |
Tyson Tan |
attachment added |
|
ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553690/+files/ProcCpuinfo.txt |
|
| 2013-03-02 07:36:23 |
Tyson Tan |
attachment added |
|
ProcInterrupts.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553691/+files/ProcInterrupts.txt |
|
| 2013-03-02 07:36:25 |
Tyson Tan |
attachment added |
|
ProcModules.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553692/+files/ProcModules.txt |
|
| 2013-03-02 07:36:28 |
Tyson Tan |
attachment added |
|
PulseList.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553693/+files/PulseList.txt |
|
| 2013-03-02 07:36:31 |
Tyson Tan |
attachment added |
|
UdevDb.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553694/+files/UdevDb.txt |
|
| 2013-03-02 07:36:35 |
Tyson Tan |
attachment added |
|
UdevLog.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553695/+files/UdevLog.txt |
|
| 2013-03-02 07:36:39 |
Tyson Tan |
attachment added |
|
WifiSyslog.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553696/+files/WifiSyslog.txt |
|
| 2013-03-02 07:38:26 |
Tyson Tan |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2013-03-14 13:03:56 |
Tyson Tan |
summary |
Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 |
Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later |
|
| 2013-03-14 13:07:35 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 64-bit.
2) The version of the package used
linux-image-3.5.0-26-generic
3) What you expected to happen
Audio being played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous one did not.
I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal.
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as of 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic and later.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous failed to work after the upgrade.
I downgraded the package to the previous 3.5.0-25-generic, then everything went back to normal.
I suspect the patch:
ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices
https://patchwork.kernel.org/patch/2100111/
had cause this issue.
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-14 13:46:51 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as of 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic and later.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous failed to work after the upgrade.
I downgraded the package to the previous 3.5.0-25-generic, then everything went back to normal.
I suspect the patch:
ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices
https://patchwork.kernel.org/patch/2100111/
had cause this issue.
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as of 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic and later.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous failed to work after the upgrade.
I downgraded the package to the previous 3.5.0-25-generic, then everything went back to normal.
I have recheck the source of the issue, and find out:
This bug will appear after install kernel 3.5.7.6:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1131944
kernel 3.5.7.5 and older were all fine.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.5-quantal/
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-14 16:08:06 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as of 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic and later.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound.
4) What happened instead
After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed.
One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous failed to work after the upgrade.
I downgraded the package to the previous 3.5.0-25-generic, then everything went back to normal.
I have recheck the source of the issue, and find out:
This bug will appear after install kernel 3.5.7.6:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1131944
kernel 3.5.7.5 and older were all fine.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.5-quantal/
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have two USB DACs, one Asynchronous and the other one Synchronous. Only the Asynchronous one is affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-14 16:10:25 |
Tyson Tan |
summary |
Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later |
USB Audio Codec jerky playback (crackling noise) |
|
| 2013-03-14 16:12:49 |
Tyson Tan |
tags |
apport-collected package-from-proposed quantal running-unity third-party-packages |
apport-collected kernel-bug-exists-upstream package-from-proposed quantal running-unity third-party-packages |
|
| 2013-03-14 16:22:34 |
Tyson Tan |
tags |
apport-collected kernel-bug-exists-upstream package-from-proposed quantal running-unity third-party-packages |
apport-collected kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages |
|
| 2013-03-14 16:25:43 |
Tyson Tan |
tags |
apport-collected kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages |
apport-collected audio kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages usb |
|
| 2013-03-15 00:44:10 |
Tyson Tan |
tags |
apport-collected audio kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages usb |
apport-collected audio kernel-bug kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages usb usb-audio |
|
| 2013-03-17 03:13:19 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have two USB DACs, one Asynchronous and the other one Synchronous. Only the Asynchronous one is affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have two USB DACs, one Asynchronous and the other one Synchronous. Only the Asynchronous one is affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-17 13:45:48 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have two USB DACs, one Asynchronous and the other one Synchronous. Only the Asynchronous one is affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested three USB DACs, two Asynchronous and one Synchronous. Only the Asynchronous ones are affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-17 13:47:18 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested three USB DACs, two Asynchronous and one Synchronous. Only the Asynchronous ones are affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-17 14:16:05 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6
3.7.6 > 3.7.7
3.8.0-rc6 > 3.8.0-rc7
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-17 14:24:47 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-19 12:29:39 |
Tyson Tan |
summary |
USB Audio Codec jerky playback (crackling noise) |
USB Audio Codec choppy playback |
|
| 2013-03-21 00:53:04 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-21 00:57:57 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-22 12:06:21 |
Tom Kirby |
bug |
|
|
added subscriber Tom Kirby |
| 2013-03-22 19:44:02 |
Joseph Salisbury |
tags |
apport-collected audio kernel-bug kernel-bug-exists-upstream package-from-proposed quantal raring running-unity third-party-packages usb usb-audio |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed quantal raring running-unity third-party-packages usb usb-audio |
|
| 2013-03-23 02:49:16 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since the very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are afeected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-23 02:49:36 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since the very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are afeected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since the very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-23 02:51:46 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since the very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-24 05:42:57 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 are affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-29 03:01:56 |
Tim Richardson |
bug |
|
|
added subscriber Tim Richardson |
| 2013-03-29 06:54:16 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Dragonfly USB DAC
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-03-29 12:41:04 |
Tyson Tan |
description |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.4
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Dragonfly USB DAC
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
1) The release of Ubuntu using
Ubuntu 12.10 AMD64.
Ubuntu 13.04 AMD64, daily build as new as 20130314.
2) The version of the package used
linux-image-3.5.0-26-generic
linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/
linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/
linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/
This bug had been confirmed appearing after the following kernel upgrade step:
v3.5.0-25 > v3.5.0-26 ~ v3.5.0-27
v3.5.7.5 > v3.5.7.6 ~ v3.5.7.8
v3.7.6 > v3.7.7 ~ v3.7.10
v3.8.0-rc6 > v3.8.0-rc7 ~ v3.8.5
The v3.9 branch has been affected since its very first release.
v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected.
3) What you expected to happen
When using a USB DAC to play audio, the audio should be played normally without any interruption.
4) What happened instead
This bug seems to affect only a certain kind of hardware, which is called "Asynchronous USB Digital Audio Codec (DAC)". It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called "Synchronous USB DAC", uses the clock hosted by the mother board, which is not affected by this bug.
When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays.
Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set.
I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug.
Affected Devices:
Arce MDAC5
Arce MDAC mini
Ayre Acoustics QB-9
Dragonfly USB DAC
Musical Fidelity v2 DAC
USB Audio Streaming Controller on affected devices:
Texas Instrument TAS1020
http://www.ti.com/product/tas1020
Audio DAC on affected devices:
Texas Instruments PCM1742
http://www.ti.com/product/pcm1742
This bug had been confirmed appearing after the following kernel upgrade step:
3.5.0-25 > 3.5.0-26
3.5.7.5 > 3.5.7.6 (and all 3.5.7.x above)
3.7.6 > 3.7.7 (and all 3.7.x above)
3.8.0-rc6 > 3.8.0-rc7 (and all 3.8.x above)
I used Kdiff to find the similar patches, and find the following patches suspicous:
USB: XHCI: fix memory leak of URB-private data
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix for leaking isochronous data
(appeared in 3.7.7/3.8.0-rc7)
usb: Prevent dead ports when xhci is not enabled
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
usb: Using correct way to clear usb3.0 device's remote wakeup feature
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: remove ASS/PSS polling timeout
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: unlink one async QH at a time
(appeared in 3.7.7/3.8.0-rc7)
USB: EHCI: fix timer bug affecting port resume
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
USB: EHCI: fix bug in scheduling periodic split transfers
(appeared in 3.5.7.6/3.7.7/3.8.0-rc7)
Hope someone can look into this bug soon!
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tysontan 2117 F.... pulseaudio
/dev/snd/controlC1: tysontan 2117 F.... pulseaudio
/dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb
InstallationDate: Installed on 2013-02-15 (14 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 0053A11
MarkForUpload: True
Package: linux 3.5.0.26.32
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
RelatedPackageVersions:
linux-restricted-modules-3.5.0-26-generic N/A
linux-backports-modules-3.5.0-26-generic N/A
linux-firmware 1.95
RfKill:
Tags: quantal package-from-proposed running-unity third-party-packages
Uname: Linux 3.5.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 0053A11
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0053A11
dmi.product.version: ThinkPad X201 Tablet
dmi.sys.vendor: LENOVO |
|
| 2013-04-03 12:48:03 |
zonque |
bug |
|
|
added subscriber zonque |
| 2013-04-03 14:57:08 |
Joseph Salisbury |
tags |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed quantal raring running-unity third-party-packages usb usb-audio |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed performing-bisect quantal raring running-unity third-party-packages usb usb-audio |
|
| 2013-04-04 15:39:17 |
Thomas Dillig |
bug |
|
|
added subscriber Thomas Dillig |
| 2013-04-13 13:49:40 |
lorty |
bug |
|
|
added subscriber lorty |
| 2013-04-16 07:30:45 |
Thiebaud |
bug |
|
|
added subscriber Thiebaud |
| 2013-04-20 03:54:57 |
Tyson Tan |
attachment added |
|
usbmon trace result of Arce MDAC5 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648815/+files/1.mon.out |
|
| 2013-04-20 04:07:18 |
Tyson Tan |
attachment added |
|
lsusb information of Thinkpad X201T + Arce MDAC5 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648816/+files/lsusb |
|
| 2013-04-20 08:23:33 |
Tyson Tan |
attachment added |
|
usbmon trace result of Arce MDAC5 (unaffected kernel) https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648880/+files/2.mon.out |
|
| 2013-04-25 20:10:15 |
Alan Stern |
bug |
|
|
added subscriber Alan Stern |
| 2013-04-26 19:30:50 |
Alan Stern |
attachment added |
|
lsusb output for my USB audio device https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3655259/+files/lsusb |
|
| 2013-05-21 02:15:46 |
Toby Corkindale |
bug |
|
|
added subscriber Toby Corkindale |
| 2013-05-21 09:10:54 |
Tim Richardson |
attachment added |
|
this is the output of periodic for the USB DAC when in plays back with no problems https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3682746/+files/periodic_good.txt |
|
| 2013-05-21 09:22:10 |
Tim Richardson |
attachment added |
|
periodic file for the bad USB DAC output https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3682775/+files/periodic_bad.txt |
|
| 2013-05-21 23:37:06 |
Tim Richardson |
attachment added |
|
/sys/kernel/debug/usb/devices renamed as devices.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3683385/+files/devices.txt |
|
| 2013-05-23 20:18:03 |
Alan Stern |
attachment added |
|
fix some mistakes in ehci-hcd's split transaction scheduler https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685174/+files/ehci-split-bugs |
|
| 2013-05-24 00:16:18 |
Ubuntu Foundations Team Bug Bot |
tags |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed performing-bisect quantal raring running-unity third-party-packages usb usb-audio |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed patch performing-bisect quantal raring running-unity third-party-packages usb usb-audio |
|
| 2013-05-24 00:16:19 |
Ubuntu Foundations Team Bug Bot |
bug |
|
|
added subscriber Joseph Salisbury |
| 2013-05-24 06:30:13 |
Tim Richardson |
attachment added |
|
periodic.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685425/+files/periodic.txt |
|
| 2013-05-24 06:30:53 |
Tim Richardson |
attachment added |
|
devices.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685426/+files/devices.txt |
|
| 2013-05-26 11:45:43 |
Andrejs Hanins |
bug |
|
|
added subscriber Andrejs Hanins |
| 2013-05-29 16:10:00 |
Joseph Salisbury |
tags |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed patch performing-bisect quantal raring running-unity third-party-packages usb usb-audio |
apport-collected audio kernel-bug kernel-bug-exists-upstream kernel-da-key package-from-proposed patch quantal raring running-unity third-party-packages usb usb-audio |
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| 2013-06-06 08:46:58 |
mp |
bug |
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added subscriber mp |
| 2013-06-13 07:56:21 |
Thiebaud |
removed subscriber Thiebaud |
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| 2013-06-16 20:45:39 |
jazztickets |
bug |
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added subscriber jazztickets |
| 2013-06-24 14:22:53 |
Joseph Salisbury |
linux (Ubuntu): status |
Confirmed |
Fix Committed |
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| 2013-06-29 06:10:43 |
Artem Popov |
bug |
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added subscriber Artem Popov |
| 2013-07-23 18:23:54 |
Joseph Salisbury |
linux (Ubuntu): status |
Fix Committed |
Fix Released |
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| 2013-08-01 16:51:55 |
Welly Wu |
bug |
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added subscriber Welly Wu |
| 2013-11-12 18:38:03 |
Tim Richardson |
removed subscriber Tim Richardson |
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| 2013-12-09 00:38:57 |
a! |
linux (Ubuntu): assignee |
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a! (a-guenther) |
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| 2013-12-09 00:43:43 |
a! |
bug |
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added subscriber a! |
| 2013-12-09 02:30:55 |
a! |
linux (Ubuntu): assignee |
a! (a-guenther) |
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|
| 2014-01-03 12:44:43 |
netsuso |
bug |
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added subscriber netsuso |
| 2014-02-19 22:04:45 |
Mark Rich |
bug |
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added subscriber Mark Rich |
| 2014-04-21 19:03:52 |
Mark Rich |
attachment added |
|
1mon.tar.gz https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4091571/+files/1mon.tar.gz |
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| 2014-05-01 19:04:21 |
Mark Rich |
attachment added |
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2.mon.out https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4102609/+files/2.mon.out |
|
| 2014-05-02 14:39:15 |
Alan Stern |
attachment added |
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Partial fix for xhci-hcd isochronous start-frame bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4103424/+files/xhci-isoc-start.patch |
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| 2014-06-03 02:42:58 |
AdamRoper |
bug |
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added subscriber AdamRoper |
| 2014-06-03 17:10:27 |
a! |
attachment added |
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output https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4124889/+files/1.mon.out |
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| 2014-12-06 15:55:09 |
Tim Passingham |
bug |
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added subscriber Tim Passingham |
| 2015-11-12 14:10:53 |
Kevin Beel |
bug |
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added subscriber Kevin Beel |
