maemo.org Bugzilla – Bug 8772
Pulseaudio uses CPU when no sound playing
Last modified: 2010-02-02 14:45:17 UTC
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EXACT STEPS LEADING TO PROBLEM:
Hard to determine the cause. This morning I have woken with an alarm and
listened to internet radio via media player, but I've only just noticed the
condition and have an uptime of >3 days.
No sounds played so pulseaudio should be idling.
pulseaudio is using between 1% and 6% (average ~2.5%) CPU continuously.
Unknown- this is the first time I've noticed it and I want to keep the
condition 'alive' to investigate. Comment on T.M.O. (see below) suggests it's
EXTRA SOFTWARE INSTALLED:
2g/3g mode selection applet
custom operator name widget
extra decoders support
personal ip address (enabled & disabled this morning)
pidgin protocols plugin for conversations & contacts
I can't (yet) pin down what's to blame for this situation.
Can anyone tell from my strace/lsof output what pulseaudio is doing & whether
any process is connected to it?
In my 3 days uptime I have watched videos, viewed flash in MicroB, taken phone
calls, used google talk, listened to internet radio... I honestly don't know
what could have triggered this.
This comment on T.M.O. is clearly talking about the same problem:
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:22.214.171.124)
Gecko/20100106 Ubuntu/9.10 (karmic) Firefox/3.5.7
Created an attachment (id=2189) [details]
complete 'lsof ' output
Created an attachment (id=2190) [details]
strace -p `pidof pulseaudio` -f -T -tt
Created an attachment (id=2191) [details]
ls -thl /proc/`pidof pulseaudio`/fd
Created an attachment (id=2192) [details]
output of "ps"
Created an attachment (id=2193) [details]
output of "powertop"
Thanks for reporting this.
So no call was involved (bug 6868)?
(In reply to comment #6)
> So no call was involved (bug 6868)?
Oh crap, I must have only searched for 'Open' bugs. Yes sorry it's a dupe.
I had taken calls.
running "killall tonegend" (as mentioned in bug 6868) resolved the CPU load and
pulseaudio has now released the sound device.
*** This bug has been marked as a duplicate of bug 6868 ***