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** Changed in: alsa-driver (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/749946
Title:
[VIA8237 - VIA 8237] Sound crashes during video playback, wedges
system
Status in alsa-driver package in Ubuntu:
Incomplete
Bug description:
Recently, while watching movies in VLC, after about 45 to 60 minutes
sometimes ALSA will crash. The symptoms are:
1) Audio suddenly stops playing.
2) After a few seconds, video freezes.
3) System enters a tight loop, appearing to be almost completely frozen -
mouse cursor will not move, SSH clients stop responding (but remain connected).
4) After a few seconds, there is heavy disk activity. The system may then
start to gradually respond to keypresses (and SSH clients eventually update),
but runs extremely slowly.
The system continues to lag severely (any input takes several seconds
to register, screen refreshes only once every few seconds) until
pressing Alt+SysRq+K to kill the X session and all processes under it
and log in again. Even this takes quite a while to execute. Once the
session terminates and GDM appears again, the system once again runs
normally and audio resumes working.
At some point during this ordeal, a number of messages are written to
syslog (see attachment).
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
Card0.Amixer.info:
Card hw:0 'V8237'/'VIA 8237 with ALC655 at 0xc000, irq 22'
Mixer name : 'Realtek ALC655 rev 0'
Components : 'AC97a:414c4760'
Controls : 48
Simple ctrls : 29
Card1.Amixer.info:
Card hw:1 'J'/'A4 TECH A4 TECH USB2.0 PC Camera J at usb-0000:00:10.4-3.1.1,
high speed'
Mixer name : 'USB Mixer'
Components : 'USB0ac8:c40a'
Controls : 3
Simple ctrls : 2
Date: Sun Apr 3 22:54:31 2011
InstallationMedia: Xubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, no user)
LANG=en_CA.utf8
SHELL=/bin/bash
SelectedCard: 0 V8237 VIA8237 - VIA 8237
SourcePackage: alsa-driver
Symptom: audio
Title: [VIA8237 - VIA 8237] Playback problem
dmi.bios.date: 07/26/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080011
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-7032
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080011:bd07/26/2005:svnMSI:pnMS-7032:pvr1.0:rvnMSI:rnMS-7032:rvr1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: MS-7032
dmi.product.version: 1.0
dmi.sys.vendor: MSI
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