Bug 693616

Summary: Sound randomly goes silent until reboot
Product: [Fedora] Fedora Reporter: Michael Kopinsky <mkopinsky>
Component: pulseaudioAssignee: Lennart Poettering <lpoetter>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 14CC: awilliam, drjohnson1, lkundrak, lpoetter, mmasson
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-08-16 14:06:41 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
Output from alsa-info
none
Output from pulseaudio -vvvvv
none
Output from pacmd ls none

Description Michael Kopinsky 2011-04-05 05:40:13 UTC
Created attachment 489914 [details]
Output from alsa-info

Description of problem:
I have not been able to figure out a pattern to this, but the audio on my machine is randomly cutting out. I originally thought it was related to suspend, but lately I've been noticing the issue even when I haven't suspended. I spent some time debugging with fenris02 on IRC, and tested at least the following:

* Pulseaudio is indeed running
* Permissions are correct (getfacl /dev/snd/*)
* SELinux is permissive
* Logging out and back into the graphical console did not fix it


Version-Release number of selected component (if applicable):


How reproducible:
Very random.

Steps to Reproduce:
1. Open a youtube video, play an mp3 with totem, or the like
2.
3.
  
Actual results:
Sound plays

Expected results:
Software indicates that sound is playing, but no sound actually plays

Additional info:

Comment 1 Michael Kopinsky 2011-04-05 05:41:22 UTC
Created attachment 489915 [details]
Output from pulseaudio -vvvvv

Comment 3 Michael Kopinsky 2011-04-13 02:27:43 UTC
Created attachment 491626 [details]
Output from pacmd ls

Comment 4 Adam Williamson 2011-04-13 02:48:17 UTC
is the output from pulseaudio -vvvvv after or before the problem occurs? can you pinpoint the point in that log when you notice the problem? that would make it easier to try and figure out what's going wrong.

Comment 5 Michael Kopinsky 2011-04-13 02:54:14 UTC
The output is from when I tried to restart pulseaudio while the problem was occurring.

Since the problem occurs so sporadically, the only way to capture the output from pulseaudio -vvvvv when it begins would be to a) have the pulseaudio daemon always run with -vvvvv, and b) to set a cron job to play a sound every 10 minutes so I'm more likely to notice when the issue begins. Should I do that?

Comment 6 Adam Williamson 2011-04-13 03:51:21 UTC
it would be useful to have pulseaudio and /var/log/messages output from when it happens, definitely. you can kill pulseaudio right after boot and re-run it from a console with -vvvvv then just leave it running till the problem happens, i guess?

Comment 7 Michael Kopinsky 2011-04-13 03:58:00 UTC
OK, I'll give that a try. I might even be fancy and nohup it to a file.

Comment 8 mmasson 2012-06-07 03:16:53 UTC
Was there a resolution to this? I've found what seems to be the same problem in RHEL 6.2. Any information would be great.

Comment 9 Michael Kopinsky 2012-06-07 03:38:50 UTC
This problem fixed itself for me when I upgraded from FC14 to FC16.

Comment 10 mmasson 2012-06-07 04:39:57 UTC
Ah, thanks for the update. Sadly I can't update any further. I think it may be caused by the differential between the alsa-libs and alsa-driver in case anyone else stumbles upon this problem.

Comment 11 Fedora End Of Life 2012-08-16 14:06:44 UTC
This message is a notice that Fedora 14 is now at end of life. Fedora 
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