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[nandemonai <1341898@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1321421 ***
    https://bugs.launchpad.net/bugs/1321421

Above fix works, marking as a duplicate of
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1321421.

** This bug has been marked a duplicate of bug 1321421
   8086:8ca0 Sound output distorted/unusable with Intel Z97/H97

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https://bugs.launchpad.net/bugs/1341898

Title:
  [MS-7920, Realtek ALC1150, Red Line Out, Rear] Underruns, dropouts or
  crackling sound

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

Bug description:
  Sound appears to have trouble buffering at times playing too fast or
  slow and glitching like a bad mp3.

  Posts here have not resolved the issue:

  http://askubuntu.com/questions/464877/ubuntu-14-04-sound-glitch

  https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1019693 -
  Not 100% it's the same issue

  http://askubuntu.com/questions/157554/choppy-stuttery-sped-up-sound-
  after-update

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  nandemonai   2849 F.... pulseaudio
   /dev/snd/controlC2:  nandemonai   2849 F.... pulseaudio
   /dev/snd/controlC0:  nandemonai   2849 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Tue Jul 15 10:30:01 2014
  InstallationDate: Installed on 2014-07-05 (9 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_Jack: Red Line Out, Rear
  Symptom_Type: Underruns, dropouts, or "crackling" sound
  Title: [MS-7920, Realtek ALC1150, Red Line Out, Rear] Underruns, dropouts or crackling sound
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/22/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.0
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z97I GAMING AC (MS-7920)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To be filled by O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.0:bd04/22/2014:svnMSI:pnMS-7920:pvr1.0:rvnMSI:rnZ97IGAMINGAC(MS-7920):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7920
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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