Sound through headphones randomly stops working

[Gonçalo Marrafa]

Sometimes, apparently randomly, sound stops working through the headphones. Sound still works normally through speakers but not through headphones. Pulseaudio correctly senses the headphone plug/unplug and the device appears in the output devices list but no sound is heard.

I've tried killing pulsaudio and restarting the session but only a reboot solves the problem.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu15.1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
Uname: Linux 3.2.0-26-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu10
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gjm 2234 F.... pulseaudio
 /dev/snd/pcmC0D0p: gjm 2234 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6fdc000 irq 49'
   Mixer name : 'IDT 92HD71B7X'
   Components : 'HDA:111d76b2,1028024f,00100302'
   Controls : 20
   Simple ctrls : 11
Date: Thu Jun 28 11:20:57 2012
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to precise on 2012-04-27 (61 days ago)
dmi.bios.date: 10/30/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 0X564R
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA18:bd10/30/2009:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0X564R:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6500
dmi.sys.vendor: Dell Inc.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Iain Ireland (iireland)]

I am having the same problem. In my case, however, a suspend/resume seems to fix the problem. (Restarting pulseaudio does not.)

[kbsali (kbsali)]

Same issue here, only reboot seems to solve the problem.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

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