[pulseaudio-tickets] [Bug 71766] Choppy sound on ALC898

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71766

--- Comment #6 from Raymond <superquad.vortex2 at gmail.com> ---
(In reply to comment #5)
> Thx for your help!
> 
> I unplugged the front audio panel, problem still present!
> 
> hdajackretask fixed the noise(yeahh!), but is this a solution for the
> problem?

do your front mic have same sympton ? ( plugged and unplgged several times
within same second in pulseaudio log )


may be related to unsolicited event of the headphone pin complex if the problem
still present after you unplugged the front audio panel from the front audio
panel connector of the motherboard


Suppose you built your kernel with the tracing support.  

See "Tracepoints" option in
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/plain/Documentation/sound/alsa/HD-Audio.txt

The hd-audio driver gives a few basic tracepoints.
`hda:hda_send_cmd` traces each CORB write while `hda:hda_get_response`
traces the response from RIRB (only when read from the codec driver).
`hda:hda_bus_reset` traces the bus-reset due to fatal error, etc,
`hda:hda_unsol_event` traces the unsolicited events


 echo 1 > /sys/kernel/debug/tracing/events/hda/hda_unsol_event/enable 

 cat /sys/kernel/debug/tracing/trace


check the trace to find out whether multiple unsol events are issued when the
headphone is plugged

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