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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#c31">Comment # 31</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:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
<pre>(I
<span class="quote">>
> Also, after I do:
> echo 1 > /proc/asound/card0/pcm0p/xrun_debug
>
> I have lots of this in dmesg:
> [ 3504.140844] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=56,
> new_hw_ptr=809, old_hw_ptr=753)
> [ 3504.143264] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=913, old_hw_ptr=841)
> [ 3504.148353] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=1137, old_hw_ptr=1065)
> [ 3504.150102] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80,
> new_hw_ptr=1217, old_hw_ptr=1137)
> [ 3504.156337] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=1489, old_hw_ptr=1417)
> [ 3504.157990] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=1561, old_hw_ptr=1489)
> [ 3504.169408] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=2065, old_hw_ptr=1993)
> [ 3504.170967] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=2137, old_hw_ptr=2065)
> [ 3504.179684] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=72,
> new_hw_ptr=2521, old_hw_ptr=2449)
> [ 3504.194902] ALSA: PCM: [Q] Lost interrupts?: (stream=0, delta=80,
> new_hw_ptr=121, old_hw_ptr=41)</span >
<a href="http://www.alsa-project.org/main/index.php/XRUN_Debug">http://www.alsa-project.org/main/index.php/XRUN_Debug</a>
you need more debug info to find out what happen
Enable basic debugging and dump stack, check hardware pointer on the period
update
<a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt</a>
how about enable_msi=0 ?
if it don't help, you need to file bug report at
<a href="https://bugzilla.kernel.org/enter_bug.cgi?product=Drivers">https://bugzilla.kernel.org/enter_bug.cgi?product=Drivers</a></pre>
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