Bug 47961 - crippled sound (intel HDA)
Summary: crippled sound (intel HDA)
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Takashi Iwai
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-09-25 20:35 UTC by Martin Wildam
Modified: 2012-10-11 14:50 UTC (History)
2 users (show)

See Also:
Kernel Version: 3.6-rc6, 3.6-rc7
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
lshw for machine experiencing the problem. (15.15 KB, text/plain)
2012-09-25 20:35 UTC, Martin Wildam 		Details
Crippled sound example (773.76 KB, video/ogg)
2012-09-25 20:37 UTC, Martin Wildam 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Martin Wildam 2012-09-25 20:35:18 UTC 
Created attachment 81061 [details]
lshw for machine experiencing the problem.

To reproduce (on Ubuntu 12.04 and intel HDA):
Just boot and log in.
Already startup sound can be heard crippled and all other applications playing sound show the same effect.

Problem not experienced in kernel 3.4, but 3.6-rc6 and rc7 have the problem.
Comment 1 Martin Wildam 2012-09-25 20:37:39 UTC 
Created attachment 81071 [details]
Crippled sound example

Sound effect ogg-example attached.

I have previously filed the bug here:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1055188
Comment 2 Bastian Beranek 2012-10-03 08:11:37 UTC 
Hey,

could be this?

https://lkml.org/lkml/2012/9/26/53

I suffered from the same and patched my kernel by reverting that change. Works fine now...
Comment 3 Takashi Iwai 2012-10-11 14:50:50 UTC 
This bug should have been fixed in upcoming 3.7-rc1 and 3.6.2.
The fix commit is 99df18b31db389ec6abc8ad5415c14e7bb752b58.
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