Red Hat Bugzilla – Bug 428235
Pulsaudio crashes with VLC
Last modified: 2008-12-18 09:36:46 EST
Description of problem:
If I run the vlc client on an audio file (or video file with audio
track) and then exit (either using the exit menu command or ctl-C)
*before* stopping the play, then pulseaudio "freezes" giving an
annoying buzzing type sound (as if the last partial note keeps
replaying). This requires me to manually stop and restart the
If I stop playing the audio/video file *before* exiting then
everything is ok.
This seems to be a nasty bug somewhere in the vlc-pulseaudio
Note that I do not get a similar problem when I ctl-c out of mplayer or any
other audio player for that matter.
(The half-backed implementation of pulseaudio on F8 is getting really
Version-Release number of selected component (if applicable):
vlc-0.8.6-d from atrpms
How reproducible: 100%
Steps to Reproduce:
1. Install vlc from atrpms
2. vlc <audio file>
3. Menu: File->Exit (or press ctl-c a couple of time)
4. Pulseaudio crashes!
Also, there were no messages to /var/log/messages. Even running pulseaudio -vvv
from the command line didn't turn up anything interesting at the time of exit
I am able to AVOID the crash by changing the "Audio output module" (under
Settings->Preferences: Audio->Output modules) from "Default" (which I believe is
Alsa) to "EsounD audio output"
While this avoids crashes, it doesn't address the two root problems with PulseAudio:
- A bad setting in a client program should not crash PulseAudio and wipe out
sound for the system. There is a bug out there somewhere....
- More fundamentally, PulseAudio IMHO should never have been released into F8
when it breaks so many standard applications requiring all types of non-obvious
changes to settings and workarounds.
Thanks for your report.
(In reply to comment #0)
> Description of problem:
> If I run the vlc client on an audio file (or video file with audio
> track) and then exit (either using the exit menu command or ctl-C)
> *before* stopping the play, then pulseaudio "freezes" giving an
> annoying buzzing type sound (as if the last partial note keeps
> replaying). This requires me to manually stop and restart the
> pulseaudio daemon.
Could you attempt to obtain a stack trace of the pulseaudio daemon?
You will probably need to be root for that as it runs setuid.
Install yum-utils package and do a debuginfo-install pulseaudio.
Then connect the debugger with "gdb -p `pidof pulseaudio`" and do a "bt"
More on stack traces:
> (The half-backed implementation of pulseaudio on F8 is getting really
I am eager to see a patch for a full-baked implementation from you.
> While this avoids crashes, it doesn't address the two root problems with
> - A bad setting in a client program should not crash PulseAudio and wipe out
> sound for the system. There is a bug out there somewhere....
An interesting observation. Do you volunteer to fix that?
> - More fundamentally, PulseAudio IMHO should never have been released into F8
> when it breaks so many standard applications requiring all types of non-obvious
> changes to settings and workarounds.
Fortunatelly your opintion doesn't matter here. What would matter would be
constructive contributions such as fixes, or bug reports (such as this one).
What doesn't count as a constructive contribution is insulting developers who
invest their free time and effort into making the operating system that you run
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Closing due to lack of response.