Public bug reported:
Sound works fine after restart, but then suddenly the speakers go
silent. The headphone jack is still giving out sound, though. The
problem never occurred before, I first noticed it only after a recent
Linux kernel upgrade, so I suspect it may be related.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: josip 6622 F.... pulseaudio
/dev/snd/controlC0: josip 6622 F.... pulseaudio
/dev/snd/pcmC0D0p: josip 6622 F...m pulseaudio
CurrentDesktop: Unity
Date: Sun Jan 25 14:46:36 2015
InstallationDate: Installed on 2014-09-27 (119 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
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 L750, Conexant CX20585, Speaker, Internal] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/24/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: 2.40
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:bvr2.40:bd08/24/2011:svnTOSHIBA:pnSATELLITEL750:pvrPSK30E-040006Y4:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE L750
dmi.product.version: PSK30E-040006Y4
dmi.sys.vendor: TOSHIBA
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1414440
Title:
[SATELLITE L750, Conexant CX20585, Speaker, Internal] speaker fails
after a while; headphone jack still working
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