Public bug reported:

every few hours while listening to music sound will stop working and
instead become a garbled mess. I then have to quit audio app and restart
it to get it back to normal.

I have not found any specific examples that can re-create this bug, it
just happens when it feels like it. Although I have noticed it is far
less frequent while logging. it is not specific to gstreamer apps as
also happens with xine.

Anyway please see the attached logs and let me know if you need any
further information.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', 
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', 
'/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', 
'/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 44'
   Mixer name   : 'Realtek ALC1200'
   Components   : 'HDA:10ec0888,104382fe,00100101'
   Controls      : 40
   Simple ctrls  : 22
Date: Mon May 30 09:13:39 2011
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_AU:en
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Internal Audio - HDA Intel
Symptom_Jack: Green Line Out, Rear
Symptom_Type: Sound works for a while, then breaks
Title: [P5Q-PRO, Realtek ALC1200, Green Line Out, Rear] fails after a while
UpgradeStatus: Upgraded to natty on 2011-04-21 (38 days ago)
dmi.bios.date: 05/26/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0506
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5Q-PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0506:bd05/26/2008:svnSystemmanufacturer:pnP5Q-PRO:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5Q-PRO
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty

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https://bugs.launchpad.net/bugs/790070

Title:
  [P5Q-PRO, Realtek ALC1200, Green Line Out, Rear] audio fails after a
  while

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