Public bug reported:
This issue appeared in Natty, sound was working OK in maverick.
Sound suddenly stops working, without the system apparently noticing (there are
still sound controls, applications play sounds but nothing comes out of the
speakers). There are some ways I can make sound reappear:
1. sudo alsa force-reload
2. rm -rf ~.pulse && sudo alsa force-reload
3. logout, login from console, perform 2. and then login from gdm
4. restart
sometimes 1. is enough, but sometimes I need to go all way to 4.
note: ubuntu-bug audio crashes with the following message:
23822
ERROR: symptom script /usr/share/apport/symptoms/audio.py crashed:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 56, in
thread_collect_info
package = symb['run'](report, ui)
File "/usr/share/apport/symptoms/audio.py", line 203, in run
package = problem_func(report, ui, card, isOutput, jack)
File "/usr/share/apport/symptoms/audio.py", line 78, in
symptom_fails_after_a_while
pa_finish_logging()
TypeError: pa_finish_logging() takes exactly 1 argument (0 given)
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: giorgos 23822 F.... pulseaudio
/dev/snd/controlC1: giorgos 23822 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf9df8000 irq 44'
Mixer name : 'Analog Devices AD1988B'
Components : 'HDA:11d4198b,1043829b,00100300'
Controls : 48
Simple ctrls : 26
Card1.Amixer.info:
Card hw:1 'U0x46d0x802'/'USB Device 0x46d:0x802 at usb-0000:00:1d.7-1.2, high
speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:0802'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 6144
Mono: Capture 4682 [76%] [24.28dB] [on]
Date: Mon May 16 23:40:46 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_US:en
LANG=el_GR.UTF-8
LC_MESSAGES=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/29/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1004
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5K-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1004:bd01/29/2008:svnSystemmanufacturer:pnP5K-E:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5K-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5K-E
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty running-unity
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https://bugs.launchpad.net/bugs/783682
Title:
sound stops after a random interval
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