I think this is related or even the same as Bug #494099. After sound settings setup in 5.1 or 7.1 mode start music playback (I use Banshee most frequently, but also tried in Rhythmbox). If tracks are swithed automatically one after another in playlist (in random mode), for some time everything is OK. If I switch to next track manually even once, subwoofer channel disappears and I have to set sound settings again to some value and then again to 5.1 to enable it. The most interesting thing - subwoofer channel disappear in Rhythmbox doesn't affect Banshee when they are running at the same time. After disappear in Banshee, I launched VLC with a movie and subwoofer channel was active there without any setup.
I have 2 outputs (analog and digital) on default sound card and several sound inputs on 3 different devices. Only one of inputs is set up as active.
I have 12.04 upgraded from 11.10 (don't remember which of 11.04 or 11.10 was installed as new OS).
eth0 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic-pae root=UUID=1f7d7bdc-5395-440c-9509-060a1b3f065d ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-27-generic-pae N/A
linux-backports-modules-3.2.0-27-generic-pae N/A
linux-firmware 1.79
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-04-29 (106 days ago)
dmi.bios.date: 11/13/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0602
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P7P55 LX
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0602:bd11/13/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55LX:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
I think this is related or even the same as Bug #494099. After sound settings setup in 5.1 or 7.1 mode start music playback (I use Banshee most frequently, but also tried in Rhythmbox). If tracks are swithed automatically one after another in playlist (in random mode), for some time everything is OK. If I switch to next track manually even once, subwoofer channel disappears and I have to set sound settings again to some value and then again to 5.1 to enable it. The most interesting thing - subwoofer channel disappear in Rhythmbox doesn't affect Banshee when they are running at the same time. After disappear in Banshee, I launched VLC with a movie and subwoofer channel was active there without any setup.
I have 2 outputs (analog and digital) on default sound card and several sound inputs on 3 different devices. Only one of inputs is set up as active.
I have 12.04 upgraded from 11.10 (don't remember which of 11.04 or 11.10 was installed as new OS).
ProblemType: Bug 3.2.0-27- generic- pae 3.2.0-27.43 ature: Ubuntu 3.2.0-27. 43-generic- pae 3.2.21 generic- pae i686 dules: fglrx 1043836c, 00100000' 00:1d.0- 1.2, high speed' values: 00aa0100, 00100200' values: UUID=bb159f84- e9c8-4b97- abc3-06fd08e52f a9
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-27-
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfb5f8000 irq 47'
Mixer name : 'VIA VT1708S'
Components : 'HDA:11060397,
Controls : 47
Simple ctrls : 23
Card1.Amixer.info:
Card hw:1 'U0x46d0x825'/'USB Device 0x46d:0x825 at usb-0000:
Mixer name : 'USB Mixer'
Components : 'USB046d:0825'
Controls : 2
Simple ctrls : 1
Card1.Amixer.
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 6144
Mono: Capture 0 [0%] [6.00dB] [on]
Card2.Amixer.info:
Card hw:2 'Generic'/'HD-Audio Generic at 0xfb6fc000 irq 48'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,
Controls : 6
Simple ctrls : 1
Card2.Amixer.
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Card3.Amixer.info:
Card hw:3 'Bt878'/'Brooktree Bt878 at 0xfafff000, irq 17'
Mixer name : 'Bt87x'
Components : ''
Controls : 3
Simple ctrls : 5
Date: Mon Aug 13 17:50:55 2012
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
IwConfig:
ppp0 no wireless extensions.
lo no wireless extensions.
eth0 no wireless extensions. /boot/vmlinuz- 3.2.0-27- generic- pae root=UUID= 1f7d7bdc- 5395-440c- 9509-060a1b3f06 5d ro quiet splash vt.handoff=7 ersions: restricted- modules- 3.2.0-27- generic- pae N/A backports- modules- 3.2.0-27- generic- pae N/A
MachineType: System manufacturer System Product Name
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.79
RfKill:
SourcePackage: linux asset.tag: To Be Filled By O.E.M. asset.tag: Asset-1234567890 version: Chassis Version MegatrendsInc. :bvr0602: bd11/13/ 2009:svnSystemm anufacturer: pnSystemProduct Name:pvrSystemV ersion: rvnASUSTeKCompu terINC. :rnP7P55LX: rvrRevX. 0x:cvnChassisMa nufacture: ct3:cvrChassisV ersion: version: System Version
UpgradeStatus: Upgraded to precise on 2012-04-29 (106 days ago)
dmi.bios.date: 11/13/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0602
dmi.board.
dmi.board.name: P7P55 LX
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer