[pulseaudio-tickets] [Bug 80710] Pulseaudio 5.0 uses 100% CPU time after system resumes from hibernation.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80710

--- Comment #7 from Raymond <superquad.vortex2 at gmail.com> ---
http://mailman.alsa-project.org/pipermail/alsa-devel/2014-May/076480.html

does your sound card suspend and resume normally when not using pulseaudio ?

aplay -D hw:0,0 stereo.wav

aplay -D plughw:0,0 stereo.wav

aplay -D plug:dmix stereo.wav

refer to your log

dmix usually set stop threshold to boundary 


(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   start_threshold  : 1
(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   stop_threshold   : 0
(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   silence_threshold: 0
(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   silence_size : 0

(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   boundary     :
4611686018427387904
(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   appl_ptr     : 0
(   0.189|   0.000) D: [pulseaudio] alsa-util.c:   hw_ptr       : 8138786
(   0.189|   0.000) D: [alsa-sink-ALC887 Analog] alsa-sink.c: Thread starting
up
(   0.197|   0.007) I: [alsa-sink-ALC887 Analog] core-util.c: Failed to acquire
real-time scheduling: No such file or directory
(   0.198|   0.000) I: [alsa-sink-ALC887 Analog] alsa-sink.c: Starting
playback.


hwptr already ahead of appl_ptr before pulseaudio call snd_pcm_start






his program pcm_rewindable.c want to check when did hw ptr update  by writing
square wave and rewind in periods

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