[SATELLITE L750, Conexant CX20585, Speaker, Internal] Playback problem, speakers don't work

[Alex Puchades]

Sound works through headphones, but it does not through the speakers.
HOWEVER, at logon, I can hear the drums sound, so it's not a hardware issue.
SOMETIMES, executing "amixer -c0 set Headphone unmute 100%", as adviced in [1], works temporarily.
I had same issue with Fedora 22, see [1] for context.

[1] http://www.forums.fedoraforum.org/showthread.php?t=304857

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alex 1580 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Jun 22 19:41:55 2015
InstallationDate: Installed on 2015-06-19 (3 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MID failed
Symptom_Card: Audio Interno - HDA Intel MID
Symptom_Jack: Speaker, Internal
Symptom_Type: Only some of outputs are working
Title: [SATELLITE L750, Conexant CX20585, Speaker, Internal] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/03/2012
dmi.bios.vendor: INSYDE
dmi.bios.version: 2.80
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:bvr2.80:bd07/03/2012:svnTOSHIBA:pnSATELLITEL750:pvrPSK6ME-01900HCE:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE L750
dmi.product.version: PSK6ME-01900HCE
dmi.sys.vendor: TOSHIBA

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1467622

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.7-rc1 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7-rc1-yakkety/

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]