2010/7/14 David Henningsson <launchpad.web@xxxxxxxxxxxxxx> > 2010-07-14 13:13, Raymond Yau skrev: > > > localhost pulseaudio[24553]: alsa-util.c: appl_ptr : 735801008 > > localhost pulseaudio[24553]: alsa-util.c: hw_ptr : 735846184 > > > > This is underrun as you can see appl_ptr is behing hw_ptr > > Ehm, isn't that a ring buffer? I e, there is nothing wrong with appl_ptr > being less than hw_ptr. > I think Jaroslav Kysela had already explained to you that this is an underrun The ring buffer size is only 4408 , appl_ptr is 45176 frames behind hw_ptr and you can deduce the underrun occur for more than 1 second (45176/44100) >> pulseaudio[24553]: alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: -161920 bytes (-917 ms). localhost pulseaudio[24553]: alsa-util.c: buffer_size : 4408 localhost pulseaudio[24553]: alsa-util.c: period_size : 1102 localhost pulseaudio[24553]: alsa-util.c: period_time : 24988 ... localhost pulseaudio[24553]: alsa-util.c: start_threshold : -1 localhost pulseaudio[24553]: alsa-util.c: stop_threshold : 1155530752 > > However PA server had disabled the underrun detection. > > Please clarify. If you're talking about my patch (disable underruns in > alsa-plugins) here, it has nothing to do with this situation (PA > complaining about its back-end). > > This seem has no relationship to your patch which only ignore the client side underrun The PA server has already disabled underrun detection ( no-XRUN check mode ) http://thread.gmane.org/gmane.linux.alsa.devel/60371/focus=60531 It is the responsibility of PA server to ensure underrun/overrun would not occur on the sound driver if it disabled underrun detection _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
