Public bug reported:

The sound works for approximately 20 seconds of playing audio, then stops and 
so sound . When i reboot sound only works for short time again.
Tried several "fixes" but none have worked so far. I think the soundcard stops 
being detected after a short while.
Headphones/external speakers work fine but HDMI and internal speakers have no 
soud

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
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Sun Jan 12 17:43:59 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-11-29 (44 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_Jack: Speaker, Internal
Symptom_Type: Sound works for a while, then breaks
Title: [SATELLITE L750D, Conexant CX20585, Speaker, Internal] fails after a 
while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/19/2011
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 1.30
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Inagua
dmi.board.vendor: AMD
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: AMD
dmi.chassis.version: None
dmi.modalias: 
dmi:bvnInsydeCorp.:bvr1.30:bd07/19/2011:svnTOSHIBA:pnSATELLITEL750D:pvrPSK4YE-01H00HEN:rvnAMD:rnInagua:rvrBaseBoardVersion:cvnAMD:ct10:cvrNone:
dmi.product.name: SATELLITE L750D
dmi.product.version: PSK4YE-01H00HEN
dmi.sys.vendor: TOSHIBA

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


** Tags: amd64 apport-bug saucy

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https://bugs.launchpad.net/bugs/1268347

Title:
  Speakers work then fails after a while. Only works for 20 seconds
  before stopping

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

Bug description:
  The sound works for approximately 20 seconds of playing audio, then stops and 
so sound . When i reboot sound only works for short time again.
  Tried several "fixes" but none have worked so far. I think the soundcard 
stops being detected after a short while.
  Headphones/external speakers work fine but HDMI and internal speakers have no 
soud

  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
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  Date: Sun Jan 12 17:43:59 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-11-29 (44 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 
(20131016.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Built-in Audio - HDA ATI SB
  Symptom_Jack: Speaker, Internal
  Symptom_Type: Sound works for a while, then breaks
  Title: [SATELLITE L750D, Conexant CX20585, Speaker, Internal] fails after a 
while
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/19/2011
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: 1.30
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Inagua
  dmi.board.vendor: AMD
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: AMD
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnInsydeCorp.:bvr1.30:bd07/19/2011:svnTOSHIBA:pnSATELLITEL750D:pvrPSK4YE-01H00HEN:rvnAMD:rnInagua:rvrBaseBoardVersion:cvnAMD:ct10:cvrNone:
  dmi.product.name: SATELLITE L750D
  dmi.product.version: PSK4YE-01H00HEN
  dmi.sys.vendor: TOSHIBA

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