kernel 3.19.0-18 breaks HDMI audio for snd_hda_intel

[Maarten Fonville]

Problem appears on multiple computers with exact same kernel update, so clearly the problem is within the kernel. 3.19.0-16 did work without any problems.
Before sound worked great via HDMI, now the HDMI output is not visible in neither alsamixer nor pulseaudio. Audio via the headphone jack still works.
The computers are Intel-NUC-Kit-D54250WYK:
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a26] (rev 09)
 Subsystem: Intel Corporation Device [8086:2054]
 Kernel driver in use: i915
00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 09)
 Subsystem: Intel Corporation Device [8086:2054]
 Kernel driver in use: snd_hda_inte

dmesg gives:
[ 3.178745] sound hdaudioC1D0: autoconfig: line_outs=1 (0x21/0x0/0x0/0x0/0x0) type:hp
[ 3.178750] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 3.178753] sound hdaudioC1D0: hp_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 3.178754] sound hdaudioC1D0: mono: mono_out=0x0
[ 3.178756] sound hdaudioC1D0: inputs:
[ 3.178759] sound hdaudioC1D0: Mic=0x19
...
[ 3.215371] snd_hda_intel 0000:00:03.0: Cannot turn on display power on i915
...
[ 3.297561] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor 0
...
[ 3.304357] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 3.304360] i915 0000:00:02.0: registered panic notifier
---
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: maarten 1669 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.04
Lsusb:
 Bus 001 Device 008: ID 8087:07dc Intel Corp.
 Bus 001 Device 007: ID 046d:c52b Logitech, Inc. Unifying Receiver
 Bus 001 Device 002: ID 8087:8000 Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=6c65d9ee-31fe-4832-8907-f47ac02d6f83 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-18-generic N/A
 linux-backports-modules-3.19.0-18-generic N/A
 linux-firmware 1.143.1
Tags: vivid
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-18-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip fuse lp lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/10/2015
dmi.bios.vendor: Intel Corp.
dmi.bios.version: WYLPT10H.86A.0038.2015.0410.1634
dmi.board.name: D54250WYK
dmi.board.vendor: Intel Corporation
dmi.board.version: H13922-302
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrWYLPT10H.86A.0038.2015.0410.1634:bd04/10/2015:svn:pn:pvr:rvnIntelCorporation:rnD54250WYK:rvrH13922-302:cvn:ct3:cvr:
---
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: maarten 1669 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.04
Lsusb:
 Bus 001 Device 008: ID 8087:07dc Intel Corp.
 Bus 001 Device 007: ID 046d:c52b Logitech, Inc. Unifying Receiver
 Bus 001 Device 002: ID 8087:8000 Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=6c65d9ee-31fe-4832-8907-f47ac02d6f83 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-18-generic N/A
 linux-backports-modules-3.19.0-18-generic N/A
 linux-firmware 1.143.1
Tags: vivid
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-18-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip fuse lp lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/10/2015
dmi.bios.vendor: Intel Corp.
dmi.bios.version: WYLPT10H.86A.0038.2015.0410.1634
dmi.board.name: D54250WYK
dmi.board.vendor: Intel Corporation
dmi.board.version: H13922-302
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrWYLPT10H.86A.0038.2015.0410.1634:bd04/10/2015:svn:pn:pvr:rvnIntelCorporation:rnD54250WYK:rvrH13922-302:cvn:ct3:cvr:

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1457369

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

apport information

[Maarten Fonville (maarten-fonville)]

Apport does not succesfully submit itself, so I will attach manually an apport-cli output

[Christopher M. Penalver (penalvch)]

Maarten Fonville, could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where XY and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Maarten Fonville (maarten-fonville)]

Yes, to workaround the problem I had already installed the 4.0.4-040004-generic kernel (so not the very latest topline), and it works without any trouble.

[Jadema (jadema)]

ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: jordan 1715 F.... pulseaudio
DistroRelease: Ubuntu 15.04
HibernationDevice: RESUME=UUID=818d925b-8e0e-4c71-83e1-1e7580283a63
InstallationDate: Installed on 2015-05-04 (17 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
MachineType: Google Panther
Package: linux (not installed)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=cb1723c6-a731-4557-8ed6-15f183f92935 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-18-generic N/A
 linux-backports-modules-3.19.0-18-generic N/A
 linux-firmware 1.143.1
Tags: vivid vivid
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-18-generic x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip fuse lpadmin netdev plugdev sambashare sudo users video
_MarkForUpload: True
dmi.bios.date: 04/27/2015
dmi.bios.vendor: coreboot
dmi.bios.version: MattDevo
dmi.board.name: Panther
dmi.board.vendor: Google
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: Google
dmi.modalias: dmi:bvncoreboot:bvrMattDevo:bd04/27/2015:svnGoogle:pnPanther:pvr1.0:rvnGoogle:rnPanther:rvr1.0:cvnGoogle:ct3:cvr:
dmi.product.name: Panther
dmi.product.version: 1.0
dmi.sys.vendor: Google

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

apport information

[Jadema (jadema)]

Reverted to Linux 3.19.0-16-generic and the problem is gone.

[Christopher M. Penalver (penalvch)]

Maarten Fonville, the next step is to fully reverse commit bisect from kernel 3.19 to 4.0.4 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

Please note, finding adjacent kernel versions is not fully commit bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Benjamin Xiao (ben-r-xiao)]

I am experiencing this issue as well on my Intel NUC with the 3.19.0-18 kernel. Reverting to 3.19.0-16 works around the issue.

[Maarten Fonville (maarten-fonville)]

I tested(to be able to bisect the problem) the mainline kernels, and since 3.19.0-18.18 should be based on the 3.19.6 vanilla kernel, I tried the 3.19.6 (and higher) vanilla kernels, but none of them has this issue.
So the problem is in one of the ubuntu-specific changes. I don't have the time to bisect it within the coming days, so I would really appreciate it if one of the other people also impacted by the bug could perform this bisecting.

[Christopher M. Penalver (penalvch)]

Maarten Fonville, unfortunately, if it's a Ubuntu specific change, bisecting Ubuntu commits (versus upstream) becomes an even more manual, and for many (myself included) a tediously complex process that goes between "eyeballing it" and git.

Hence, let this be marked Triaged for now, and the Ubuntu Kernel Team can follow up with you on this.

[brott (gatorstudent20)]

I confirm the same issue on an Intel NUC. 3.19.0-16 words fine with HDMI sound, 3.19.0-18 produces no sound via HDMI.

[alduc1 (alduc1)]

Same issue on UX305FA (5Y10 cpu). No problem with kernel 3.19.0-16.

[dubis (dubois-michel)]

I lost sound from my HDMI output

Asus N550LF
 3.19.0-18-generic #18-Ubuntu SMP Tue May 19 18:31:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Here my alsa information :
http://www.alsa-project.org/db/?f=b635fafc6bff004d234ad3f33d4abd693f317c93

!!Soundcards recognised by ALSA
!!-----------------------------

 1 [PCH ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7a18000 irq 45

!!PCI Soundcards installed in the system
!!--------------------------------------

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------

00:03.0 0403: 8086:0a0c (rev 09)
 Subsystem: 8086:2010
--
00:1b.0 0403: 8086:9c20 (rev 04)
 Subsystem: 1043:12dd

[malch (malch)]

Another one:

Intel NUC5i5RYH running Xubuntu 15.04

3.19.0-15 kernel: Life is good
3.19.0-18 kernel: No HDMI audio available

Clearly a showstopper for all HTPC applications.

[Luke Hofman (luke-hfm)]

Gigabyte GA-B85N / Core i3-4130T running Ubuntu 15.04

3.19.0-16 kernel: OK
3.19.0-18 kernel: No HDMI audio available

HTPC, so HDMI is crucial.

[Arthur Delaney (delaney-arthur)]

Another one:

Intel NUC i3 D34010WYKH running Ubuntu 15.04

3.19.0-18: No HDMI audio available

Tried initializing and reinstalling with a brand new 15.04 image and problem persisted. Had been running 15.04 no problems for a few weeks, problem started earlier this week after some update.

[Peter Hewett (peter-hewett)]

Similar symptoms here; audio over HDMI worked fine until update yesterday.

Hardware: Intel NUC D34010WYK
CPU: i3-4010U
Firmware: WYLPT10H.86A.0038.2015.0410.1634

Software: Kubuntu 15.04
Kernel: 3.19.0-18-generic
Architecture: x86_64

ALSA
Driver version: k3.19.0-18-generic
Library version: 1.0.28
Utilities version: 1.0.28

Loaded ALSA modules: snd_hda_intel

Also reported at Ubuntu forum.
http://ubuntuforums.org/showthread.php?t=2279520

[Stephen Thirlwall (l-sdt)]

If it's any help, I'm in the process of bisecting this between tags Ubuntu-3.19.0-16.16 and Ubuntu-3.19.0-18.18 in this repo git://kernel.ubuntu.com/ubuntu/ubuntu-vivid.git

I'll report back any findings.

I have an i3 NUC (NUC5i3RYH) with the same issue.

[Stephen Thirlwall (l-sdt)]

Still plugging away on the bisect. It's taking a little longer than I expected.

[malch (malch)]

Thanks for your efforts on the bisect Stephen. I'm sure I'm not the only one who appreciates it.

[Benjamin Xiao (ben-r-xiao)]

Yes seriously! Thanks Stephen. I am hit by this bug as well, but kernel bisecting is beyond my expertise.

[Peter Hewett (peter-hewett)]

Yes, the efforts by Stephen and others working on fixing this are most appreciated!

[Olle Olsson (olle-o2003)]

And another, not a NUC: Intel i7-4765T on ASRock H87M-ITX.
As comparison this one kept its HDMI audio: Intel i7-3770T on Asus P8H77-M Pro.
Both: 3.19.0-18 x86_64.

Of course, the first is the HTPC - now with an analog sound cable connected.

[Jason Gerard DeRose (jderose)]

I can confirm this bug on a System76 Kudu Professional (i7-4900MQ).

Booting with 3.19.0-18-generic, I don't get any HDMI option in the Output tab in the sound settings UI.

Booting with 3.19.0-16-generic, I get an HDMI option and it works fine. So this is definitely a regression between 3.19.0-16-generic and 3.19.0-18-generic.

[Stephen Thirlwall (l-sdt)]

Bisecting points to this commit as the culprit:

   http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git/commit/?id=5d81c285e3eb28c80b6cd1c2902afb1bdb9180bb

   UBUNTU: SAUCE: Call i915_bpo specific functions from the hda driver
   BugLink: http://bugs.launchpad.net/bugs/1449464

   Make sure to request the correct driver when on CHV/SKL.

I'll also try these combinations:
* 3.19.0-18.18 with this commit reverted
* current master
* current master with this commit reverted

[Stephen Thirlwall (l-sdt)]

3.19.0-18.18 with git revert 5d81c285e3eb28c80b6cd1c2902afb1bdb9180bb

* patch applies cleanly
* audio works

[Stephen Thirlwall (l-sdt)]

3.19.0-19.19 still exhibits the no-audio bug.

Reverting 5d81c285e3eb28c80b6cd1c2902afb1bdb9180bb on top of 3.19.0-19.19 restores the audio.

[Stephen Thirlwall (l-sdt)]

Thanks Xiong, that fix works for me!

(Tested against 3.19.0-19.19)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tony (l-tony-w)]

Is there a workaround or anything I can run in 15.04 to fix this issue? My 15.04 install recently updated and now the HDMI audio output disappeared in sound devices and I have no audio at all (using a Gigabyte GA-Z87N-WIFI motherboard and Intel Core i5 4570S CPU). This is a pretty major issue for me.

[Stephen Thirlwall (l-sdt)]

You can boot to the previous kernel as a workaround.

As root, edit: /etc/default/grub

You should have this line in there:

  GRUB_DEFAULT=0

Comment that out, and replace it with:

  GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 3.19.0-16-generic"

The part before the '>' is what you see at the top-level of the grub boot menu, and the part after is what you'd select to get the previous kernel. You may need to check your own boot menu to see if those strings match.

Then run: sudo update-grub

And then reboot. It should automatically take you to the old (working) kernel.

Don't forget to set GRUB_DEFAULT back to zero after the next kernel comes out.

[Max Waterman (b-ubuntuone)]

thanks Stephen, that worked for me.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.19.0-20.20

---------------
linux (3.19.0-20.20) vivid; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1459957
  * Revert "SAUCE: Call i915_bpo specific functions from the hda driver"
    - LP: #1457369

linux (3.19.0-19.19) vivid; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1458964

  [ Duc Dang ]

  * SAUCE: (no-up) [PCIE] APM X-Gene: Remove debug messages in MSI
    interrupt handler path.
    - LP: #1451593

  [ Luis Henriques ]

  * [Config] updateconfigs for 3.19.7 stable update

  [ Paolo Pisati ]

  * [Config] armhf: CPUFREQ_DT=y
    - LP: #1457781
  * annotations: enforce CPUFREQ_DT
    - LP: #1457781

  [ Tanmay Inamdar ]

  * SAUCE: (no-up) Add MSI/MSI-X driver for APM PCI bus
    - LP: #1451593

  [ Timo Aaltonen ]

  * SAUCE: i915_bpo: Rebase to v4.1-rc4.
    - LP: #1456123
  * SAUCE: i915_bpo: Revert dma-buf: cleanup dma_buf_export() to make it
    easily extensible
    - LP: #1456123

  [ Tuan Phan ]

  * SAUCE: (no-up) pci-xgene-msi: fixed deadlock in irq_set_affinity
    - LP: #1451593

  [ Upstream Kernel Changes ]

  * Revert "nfs: replace nfs_add_stats with nfs_inc_stats when add one"
    - LP: #1454699
  * cpufreq: powernv: Report cpu frequency throttling
    - LP: #1452547
  * x86: kvm: Revert "remove sched notifier for cross-cpu migrations"
    - LP: #1450584
  * x86: vdso: fix pvclock races with task migration
    - LP: #1450584
  * ip_forward: Drop frames with attached skb->sk
    - LP: #1454699
  * net: add skb_checksum_complete_unset
    - LP: #1454699
  * ppp: call skb_checksum_complete_unset in ppp_receive_frame
    - LP: #1454699
  * tcp: fix possible deadlock in tcp_send_fin()
    - LP: #1454699
  * tcp: avoid looping in tcp_send_fin()
    - LP: #1454699
  * net: do not deplete pfmemalloc reserve
    - LP: #1454699
  * net: fix crash in build_skb()
    - LP: #1454699
  * pxa168: fix double deallocation of managed resources
    - LP: #1454699
  * net/mlx4_en: Prevent setting invalid RSS hash function
    - LP: #1454699
  * md: fix md io stats accounting broken
    - LP: #1454699
  * x86/asm/decoder: Fix and enforce max instruction size in the insn
    decoder
    - LP: #1454699
  * sched/idle/x86: Restore mwait_idle() to fix boot hangs, to improve
    power savings and to improve performance
    - LP: #1454699
  * sched/idle/x86: Optimize unnecessary mwait_idle() resched IPIs
    - LP: #1454699
  * perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events
    - LP: #1454699
  * KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save
    - LP: #1454699
  * Btrfs: fix log tree corruption when fs mounted with -o discard
    - LP: #1454699
  * btrfs: don't accept bare namespace as a valid xattr
    - LP: #1454699
  * Btrfs: fix inode eviction infinite loop after cloning into it
    - LP: #1454699
  * Btrfs: fix inode eviction infinite loop after extent_same ioctl
    - LP: #1454699
  * usb: gadget: printer: enqueue printer's response for setup request
    - LP: #1454699
  * KVM: s390: fix handling of write errors in the tpi handler
    - LP: #1454699
  * KVM: s390: reinjection of irqs can fail in the tpi handler
    - LP: #1454699
  * KVM:...

[Benjamin Xiao (ben-r-xiao)]

Just downloaded 3.19.0-20 from vivid-proposed. Confirmed that this fixes the issue on my Intel NUC

[Luis Henriques (henrix)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-vivid' to 'verification-done-vivid'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Benjamin Xiao (ben-r-xiao)]

As per my previous comment, I've already verified the package in proposed. It works fine. Thanks everyone for the bug fix!

[Maarten Fonville (maarten-fonville)]

The package in proposed does indeed resolve the problem! :-)

[Jason Gerard DeRose (jderose)]

Likewise, I can confirm that 3.19.0-20-genric from proposed does fix this problem.

Thanks!

[RafaelFelipe.SL (espingardapreta)]

Fixed. Thanks.

[Jakub (jboesche)]

When can we expect this fix to be released on Vivid?

[sfl (g-launchpad-net-sbfleury-fastmail-fm)]

Confirmed, fixed my issue as well. Thanks !

[cl-netbox (cl-netbox)]

HDMI works with 3.19.0-20-generic. Thank you !

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.19.0-20.20

---------------
linux (3.19.0-20.20) vivid; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1459957
  * Revert "SAUCE: Call i915_bpo specific functions from the hda driver"
    - LP: #1457369

linux (3.19.0-19.19) vivid; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1458964

  [ Duc Dang ]

  * SAUCE: (no-up) [PCIE] APM X-Gene: Remove debug messages in MSI
    interrupt handler path.
    - LP: #1451593

  [ Luis Henriques ]

  * [Config] updateconfigs for 3.19.7 stable update

  [ Paolo Pisati ]

  * [Config] armhf: CPUFREQ_DT=y
    - LP: #1457781
  * annotations: enforce CPUFREQ_DT
    - LP: #1457781

  [ Tanmay Inamdar ]

  * SAUCE: (no-up) Add MSI/MSI-X driver for APM PCI bus
    - LP: #1451593

  [ Timo Aaltonen ]

  * SAUCE: i915_bpo: Rebase to v4.1-rc4.
    - LP: #1456123
  * SAUCE: i915_bpo: Revert dma-buf: cleanup dma_buf_export() to make it
    easily extensible
    - LP: #1456123

  [ Tuan Phan ]

  * SAUCE: (no-up) pci-xgene-msi: fixed deadlock in irq_set_affinity
    - LP: #1451593

  [ Upstream Kernel Changes ]

  * Revert "nfs: replace nfs_add_stats with nfs_inc_stats when add one"
    - LP: #1454699
  * cpufreq: powernv: Report cpu frequency throttling
    - LP: #1452547
  * x86: kvm: Revert "remove sched notifier for cross-cpu migrations"
    - LP: #1450584
  * x86: vdso: fix pvclock races with task migration
    - LP: #1450584
  * ip_forward: Drop frames with attached skb->sk
    - LP: #1454699
  * net: add skb_checksum_complete_unset
    - LP: #1454699
  * ppp: call skb_checksum_complete_unset in ppp_receive_frame
    - LP: #1454699
  * tcp: fix possible deadlock in tcp_send_fin()
    - LP: #1454699
  * tcp: avoid looping in tcp_send_fin()
    - LP: #1454699
  * net: do not deplete pfmemalloc reserve
    - LP: #1454699
  * net: fix crash in build_skb()
    - LP: #1454699
  * pxa168: fix double deallocation of managed resources
    - LP: #1454699
  * net/mlx4_en: Prevent setting invalid RSS hash function
    - LP: #1454699
  * md: fix md io stats accounting broken
    - LP: #1454699
  * x86/asm/decoder: Fix and enforce max instruction size in the insn
    decoder
    - LP: #1454699
  * sched/idle/x86: Restore mwait_idle() to fix boot hangs, to improve
    power savings and to improve performance
    - LP: #1454699
  * sched/idle/x86: Optimize unnecessary mwait_idle() resched IPIs
    - LP: #1454699
  * perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events
    - LP: #1454699
  * KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save
    - LP: #1454699
  * Btrfs: fix log tree corruption when fs mounted with -o discard
    - LP: #1454699
  * btrfs: don't accept bare namespace as a valid xattr
    - LP: #1454699
  * Btrfs: fix inode eviction infinite loop after cloning into it
    - LP: #1454699
  * Btrfs: fix inode eviction infinite loop after extent_same ioctl
    - LP: #1454699
  * usb: gadget: printer: enqueue printer's response for setup request
    - LP: #1454699
  * KVM: s390: fix handling of write errors in the tpi handler
    - LP: #1454699
  * KVM: s390: reinjection of irqs can fail in the tpi handler
    - LP: #1454699
  * KVM:...

[Mr_DNA (mr-dnase)]

I was experiencing this bug. With the upgrade to kernel 3.19.0-21-generic, the issue seemed to go away and my HDMI audio out returned. However, if the computer goes to sleep the HDMI audio disappears again. Restarting the computer is the only solution I have found to bring it back, but it again disappears if the computer suspends.

[Christopher M. Penalver (penalvch)]

Mr_DNA, as this bug report is closed, if you would like your issue fixed file a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

[Kenneth W Parker (sea7kenp-z)]

I would like to say that this might be more than just Intel. I'm experiencing this issue, with something HP calls "Integrated Realtek ALC 662".

The Live CDROM of Lubuntu 15.04, which boots under vmlinuz-3.19.0-15-generic gives me sound just fine. But when I installed, and did "apt-get dist-upgrade", bringing me up to vmlinuz-3.19.0-22-generic, there is no sound.

So that should be an easy to understand path from "working" to "not working".

Please note that Lubuntu is being hounded, by its users, for this sound issue.

Thank you and best regards,

Kenneth Parker

[Kenneth W Parker (sea7kenp-z)]

Update from prior message: I fixed sound, using Pulseaudio. I had to "apt-get install pavucontrol", and then issue "alsa -force-reload". But now, sound works with vmlinuz-3.19.0-22-generic. Thanks everyone!