http://bugzilla.opensuse.org/show_bug.cgi?id=1191247
http://bugzilla.opensuse.org/show_bug.cgi?id=1191247#c3
--- Comment #3 from Takashi Iwai ---
Thanks for quick testing.
Then could you load alsa-info.sh output from the patched kernel after
suspend/resume? Run the script with --no-upload, and use Bugzilla attachment.
Also, for verifying whether it's a driver PM problem, try the following:
- Before and after suspend/resume, try to play without PA, PW or JACK but via
ALSA native API, e.g.
% aplay -Dplughw:XXX foo.wav
where XXX is the card number like 0, 1, 2, corresponding to the device index
appearing in /proc/asound/cards.
I suppose this also results in the mono output?
- Get alsa-info.sh outputs before and after the suspend/resume.
- Check whether the problem persists with suspend-to-RAM and suspend-to-disk
(hibernate). I assume you're dealing with the former, right?
- Last but not least, check whether re-loading the driver fixes the problem
without re-plugging. You might need to go out of desktop session once, unload
snd-usb-audio module and re-load snd-usb-audio module on Linux console.
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