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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - periodic audio skips with Intel HDA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49608#c35">Comment # 35</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - periodic audio skips with Intel HDA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=49608">bug 49608</a>
from <span class="vcard"><a class="email" href="mailto:rkfg@rkfg.me" title="rkfg <rkfg@rkfg.me>"> <span class="fn">rkfg</span></a>
</span></b>
<pre>When I start PA without tsched=0, it's ALSA setup is weird:
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Control: PCM
Playback Volume
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: min_dB: -51
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: max_dB: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: resolution:
256
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Its setup is:
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: stream
: PLAYBACK
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: access
: MMAP_INTERLEAVED
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: format
: S16_LE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: subformat
: STD
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: channels
: 2
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: rate
: 44100
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: exact rate
: 44100 (44100/1)
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: msbits
: 16
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: buffer_size
: 88192
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_size
: 44096
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_time
: 999909
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: tstamp_mode
: ENABLE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_step
: 1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: avail_min
: 87310
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_event
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
start_threshold : -1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
stop_threshold : 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
silence_threshold: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: silence_size
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: boundary
: 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Slave:
Hardware PCM card 0 'HDA Intel PCH' device 0 subdevice 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: Its setup is:
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: stream
: PLAYBACK
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: access
: MMAP_INTERLEAVED
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: format
: S16_LE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: subformat
: STD
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: channels
: 2
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: rate
: 44100
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: exact rate
: 44100 (44100/1)
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: msbits
: 16
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: buffer_size
: 88192
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_size
: 44096
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_time
: 999909
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: tstamp_mode
: ENABLE
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_step
: 1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: avail_min
: 87310
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: period_event
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
start_threshold : -1
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
stop_threshold : 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c:
silence_threshold: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: silence_size
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: boundary
: 6205960286516543488
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: appl_ptr
: 0
Apr 10 09:46:52 work pulseaudio[5161]: [pulseaudio] alsa-util.c: hw_ptr
: 0
Why does period size lack 4 bytes to be exactly 1 second long?</pre>
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