[pulseaudio-discuss] Very crackly audio and crashing from cpu overload

[Ozan Çağlayan]

Chris wrote:
> Hi,
>
> I've been having lots of problems with audio in Fedora 10. At first I
> was having problems playing sound in youtube via firefox. I found a
> tutorial which suggested I change a line in default.pa from:
>
> load-module module-hal-detect
>
> to
>
> load-module module-hal-detect tsched=0
>
> That did seem to improve things. However amarok is really not happy. I
> can play mp3s for a minute or two but it is very crackly. Then
> eventually the audio stops and amarok locks up. /var/log/messages
> shows messages like this:
>
> Jan  8 21:26:46 localhost pulseaudio[3188]: main.c: High-priority
> scheduling enabled in configuration but not allowed by policy.
> Jan  8 21:26:46 localhost pulseaudio[3188]: core-util.c:
> setpriority(): Permission denied
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Device hw:0
> doesn't support 2 channels, changed to 10.
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Device hw:0
> doesn't support sample format s16le, changed to s32le.
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Cannot find
> fallback mixer control "PCM".
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Device hw:0
> doesn't support 2 channels, changed to 12.
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Device hw:0
> doesn't support sample format s16le, changed to s32le.
> Jan  8 21:26:46 localhost pulseaudio[3191]: alsa-util.c: Cannot find
> fallback mixer control "Mic".
> Jan  8 21:33:29 localhost pulseaudio[3191]: cpulimit.c: Recevied
> request to terminate due to CPU overload.
>
> I've running an AMD Athlon 64 x2 (can't remember the exact model)
> although it's 32 bit Fedora 10. The soundcard is an M-Audio Audiophile
> 2496 (ICE1712 chip I believe). I never got pulseaudio working with
> this setup in Fedora 9 and had to remove all pulse packages. Now it's
> almost working but there are clearly still issues.
>
> Any ideas? (This is my home PC so I can only investigate in the
> evenings, UK time, so bear with me! )
>
> Thanks, Chris.
>   
I suggest you to try pulseaudio 0.9.10 (or wait Lennart to release a new 
one :)) to see if the problems occurs or not. We're using 0.9.10 and 
it's really flawless.

-- 

Ozan Çağlayan
<ozan_at_pardus.org.tr>