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Created attachment 478655 [details] messages Description of problem: When playing some music (in amarok),after some time(1m or 10s) pulseaudio use 40% CPU sound stutters and then not hear anything and after some time(5m ) sound work ok. Version-Release number of selected component (if applicable): kernel-2.6.38-0.rc4.git0.2.fc15.x86_64 alsa-utils-1.0.24.1-3.fc15.x86_64 alsa-plugins-pulseaudio-1.0.24-2.fc15.x86_64 alsa-lib-1.0.24-2.fc15.x86_64 alsa-firmware-1.0.24.1-2.fc15.noarch alsa-tools-firmware-1.0.24.1-2.fc15.x86_64 pulseaudio-libs-glib2-0.9.22-3.fc15.x86_64 pulseaudio-module-gconf-0.9.22-3.fc15.x86_64 pulseaudio-0.9.22-3.fc15.x86_64 pulseaudio-utils-0.9.22-3.fc15.x86_64 pulseaudio-module-x11-0.9.22-3.fc15.x86_64 pulseaudio-libs-0.9.22-3.fc15.x86_64 pulseaudio-module-bluetooth-0.9.22-3.fc15.x86_64 pulseaudio-gdm-hooks-0.9.22-3.fc15.x86_64 How reproducible: sometimes Steps to Reproduce: 1.play some music in media player(amarok) 2.wait about 1m 3.sond stutters Actual results: Expected results: Additional info:
Created attachment 478660 [details] pulseaudio -vvvvv
Created attachment 478661 [details] dmesg
Jaroslav may be interested. Reassigning to him :-) I see the "messages" file has several occurrences of: Feb 14 15:22:40 home pulseaudio[1732]: alsa-sink.c: ALSA nás probudila z důvodu zápisu nových dat na zařízení, ale ve skutečnosti nebylo co zapisovat. Feb 14 15:22:40 home pulseaudio[1732]: alsa-sink.c: S největší pravděpodobností se jedná o chybu v ovladači ALSA "snd_intel8x0". Nahlaste prosím tento problém vývojářům ALSA. Feb 14 15:22:40 home pulseaudio[1732]: alsa-sink.c: Probudilo nás nastavení POLLOUT - nicméně následné snd_pcm_avail() vrátilo 0 či jinou hodnotu < min_avail. (ie. pulseaudio was woken by POLLOUT, but snd_pcm_avail() then returned 0 or other value < min_avail) The verbose PA log (from "pulseaudio -vvvvv") does not contain this message, but there are a lot of rewinds there.
Since a bug like this is almost certainly hardware-dependent, please also produce hw information using alsa-info.sh and attach it.
Created attachment 478663 [details] alsa-info.txt
with new kernel 2.6.38.6-26 work ok