Bug 16597 - Soundcard stopped working
Summary: Soundcard stopped working
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: i386 Linux
: P1 high
Assignee: Takashi Iwai
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-08-15 20:27 UTC by Martin Ziegler
Modified: 2010-08-16 18:18 UTC (History)
2 users (show)

See Also:
Kernel Version: v2.6.35-8076-gd782437
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
kernel configuration file (62.74 KB, text/plain)
2010-08-15 20:28 UTC, Martin Ziegler 		Details
2 alsa-info.sh outputs (23.67 KB, text/plain)
2010-08-16 10:12 UTC, Martin Ziegler 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Martin Ziegler 2010-08-15 20:27:05 UTC 
The soundcard of my Thinkpad R60 stopped working. vlc and mplayer run as normal,
except that there is no sound! Also amixer and aumix work normal. The beep
still works. 

I bisected the problem on the master branch:

Sound still works with

14a4fa20a10d76eb98b7feb25be60735217929ba, Thu Aug 12 10:00:06 2010 -0700

and fails with 

e83ddb335468cdd9ea6e9767eb30b64d8ff176ce, Thu Aug 12 10:01:06 2010 -0700

I attach my linux2.6/.config

Regards,

Martin
Comment 1 Martin Ziegler 2010-08-15 20:28:47 UTC 
Created attachment 27454 [details]
kernel configuration file
Comment 2 Takashi Iwai 2010-08-16 06:36:01 UTC 
Could you give alsa-info.sh output (run with --no-upload option) on both working and non-working kernels?  See Documentation/sound/alsa/HD-Audio.txt for details about the script.
Comment 3 Takashi Iwai 2010-08-16 06:39:19 UTC 
Looking through the commits, it's very likely the breakage in fsnotify.  It was already reverted in commit 2069601b3f0ea38170d4b509b89f3ca0a373bdc1, so check again with the later tree, e.g. 2.6.36-rc1.
Comment 4 Martin Ziegler 2010-08-16 10:10:35 UTC 
The sound is back with 2.6.36-rc1, thanks!

I attach two outputs alsa-info.sh --no-upload:

for 2.6.36-rc1     (sound works)
and 2.6.35.d782437 (no sound)

Regards,
Martin
Comment 5 Martin Ziegler 2010-08-16 10:12:40 UTC 
Created attachment 27465 [details]
2 alsa-info.sh outputs
Comment 6 Takashi Iwai 2010-08-16 18:18:22 UTC 
Let's close the bug.
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