Public bug reported:
Binary package hint: pulseaudio
The user that logs into the machine first has no issues playing sounds.
However, when using fast user switch, any user that logs in after that
cannot access the sound hardware.
Gnome volume control shows "null output" in the output tab. Sound
continues to play if started from another user, but I believe this is
actually not by design.
Any help in resolving this issue would be extremely helpful.
ProblemType: Bug
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp',
'/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c',
'/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer',
'/dev/sequencer2'] failed with exit code 1:
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xe02c0000 irq 22'
Mixer name : 'SigmaTel STAC9221 A1'
Components : 'HDA:83847680,80860202,00103201'
Controls : 22
Simple ctrls : 15
Date: Fri Jul 24 19:20:49 2009
DistroRelease: Ubuntu 9.10
Package: pulseaudio 1:0.9.15-4ubuntu2
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-4.21-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-4-generic x86_64
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
Second or third logged in user cannot play sounds -- gnome volume control shows
"null output"
https://bugs.launchpad.net/bugs/404370
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