** Summary changed:

- [To Be Filled By O.E.M., Realtek ALC892, Green Line Out, Rear] regular timed 
dropouts /crackling sound
+ [ASRock P55Pro, Realtek ALC892, Green Line Out, Rear] regular timed dropouts 
/crackling sound

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https://bugs.launchpad.net/bugs/1269629

Title:
  [ASRock P55Pro, Realtek ALC892, Green Line Out, Rear] regular timed
  dropouts /crackling sound

Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  Problem only existed after installing Ubuntu 13.10. Previous versions
  of Ubuntu did not have any sound problems. The Sound has breaks in
  output roughly every second, causing a crackle effect in sound output
  on both channels.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  nralbers   3498 F.... pulseaudio
   /dev/snd/controlC0:  nralbers   3498 F.... pulseaudio
  Date: Wed Jan 15 23:49:08 2014
  InstallationDate: Installed on 2014-01-13 (2 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 
(20131016.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MID failed
  Symptom_Card: Built-in Audio - HDA Intel MID
  Symptom_Jack: Green Line Out, Rear
  Symptom_Type: Underruns, dropouts, or "crackling" sound
  Title: [To Be Filled By O.E.M., Realtek ALC892, Green Line Out, Rear] 
Underruns, dropouts or crackling sound
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/14/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.30
  dmi.board.name: P55 Pro/USB3
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd10/14/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnP55Pro/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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