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[Anton <lancaster217@xxxxxxxxx>]

Does not look like a hardware issue with my Toshiba Satellite L750-129. I have Windows 7 in dual-boot with OpenSuSe 13.2 and speakers do ALWAYS work on Windows 7, and do not work on OpenSuSe. Claims about overheating do not explain this. 
Moreover my colleague has Satellite L755 with same Win7/OpenSuSe13.2 configuration and experiences exactly same problems.

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Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1038479

Title:
  [Satellite L755, Conexant CX20585, Speaker, Internal] fails after a
  while

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Restart will fix the issue, but sound always quits from internal
  speaker. Headphones work always.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bernie     1838 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xc0600000 irq 44'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f15069,1179fc50,00100302 HDA:80862805,1179fc50,00100000'
     Controls      : 24
     Simple ctrls  : 11
  Date: Sat Aug 18 11:18:34 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_Type: Sound works for a while, then breaks
  Title: [Satellite L755, Conexant CX20585, Speaker, Internal] fails after a while
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/13/2011
  dmi.bios.vendor: INSYDE
  dmi.bios.version: 2.20
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Base Board Product Name
  dmi.board.vendor: Intel Corp.
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: OEM Chassis Manufacturer
  dmi.chassis.version: OEM Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvr2.20:bd07/13/2011:svnTOSHIBA:pnSatelliteL755:pvrPSK1WU-05N004:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
  dmi.product.name: Satellite L755
  dmi.product.version: PSK1WU-05N004
  dmi.sys.vendor: TOSHIBA

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