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Created attachment 513990 [details] alsa-info.txt Description of problem: Sometimes I get stuttering sound at the beginning of playback or the playback is delayed a few seconds. IIRC this mostly happens after a suspend/hibernate, but I could be wrong about that. Anyway, in dmesg I found Jul 17 17:47:22 samsung rtkit-daemon[1281]: The canary thread is apparently starving. Taking action. Jul 17 17:47:22 samsung rtkit-daemon[1281]: Demoting known real-time threads. Jul 17 17:47:25 samsung rtkit-daemon[1281]: Successfully demoted thread 1285 of process 1280 (/usr/bin/pulseaudio). Jul 17 17:47:25 samsung rtkit-daemon[1281]: Successfully demoted thread 1284 of process 1280 (/usr/bin/pulseaudio). Jul 17 17:47:25 samsung rtkit-daemon[1281]: Successfully demoted thread 1280 of process 1280 (/usr/bin/pulseaudio). Jul 17 17:47:25 samsung rtkit-daemon[1281]: Demoted 3 threads. Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 1226328 bytes (6951 ms). Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_intel8x0'. Please report this issue to the ALSA developers. Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: snd_pcm_dump(): Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Hardware PCM card 0 'Intel ICH6' device 0 subdevice 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Its setup is: Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: stream : PLAYBACK Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: access : MMAP_INTERLEAVED Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: format : S16_LE Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: subformat : STD Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: channels : 2 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: rate : 44100 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: exact rate : 44100 (44100/1) Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: msbits : 16 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: buffer_size : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_size : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_time : 371519 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: tstamp_mode : ENABLE Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_step : 1 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: avail_min : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_event : 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: start_threshold : -1 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: stop_threshold : 1073741824 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: silence_threshold: 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: silence_size : 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: boundary : 1073741824 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: appl_ptr : 36582005 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: hw_ptr : 36995072 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: -1710284 bytes (-9695 ms). Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_intel8x0'. Please report this issue to the ALSA developers. Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: snd_pcm_dump(): Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Hardware PCM card 0 'Intel ICH6' device 0 subdevice 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: Its setup is: Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: stream : PLAYBACK Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: access : MMAP_INTERLEAVED Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: format : S16_LE Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: subformat : STD Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: channels : 2 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: rate : 44100 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: exact rate : 44100 (44100/1) Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: msbits : 16 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: buffer_size : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_size : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_time : 371519 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: tstamp_mode : ENABLE Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_step : 1 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: avail_min : 16384 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: period_event : 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: start_threshold : -1 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: stop_threshold : 1073741824 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: silence_threshold: 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: silence_size : 0 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: boundary : 1073741824 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: appl_ptr : 36590825 Jul 17 19:47:25 samsung pulseaudio[1280]: alsa-util.c: hw_ptr : 37018396 Version-Release number of selected component (if applicable): 2.6.38.8-32.fc15.i686.PAE How reproducible: sometimes
Are you still seeing this with 2.6.43/3.3?
Fedora 15 has reached it's end of life as of June 26, 2012. As a result, we will not be fixing any remaining bugs found in Fedora 15. In the event that you have upgraded to a newer release and the bug you reported is still present, please reopen the bug and set the version field to the newest release you have encountered the issue with. Before doing so, please ensure you are testing the latest kernel update in that release and attach any new and relevant information you may have gathered. Thank you for taking the time to file a report. We hope newer versions of Fedora suit your needs.