*** This bug is a duplicate of bug 741825 ***
https://bugs.launchpad.net/bugs/741825
I started a bug on the ALSA bug tracker a while ago for this:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5324
A mini-patch is provided that makes the 522 be detected as "ideapad",
apparently a catch-all for Acer devices. This causes the headphone and
mic jack sense to work - but not always. As far as I can tell, there's a
bigger issue that causes the driver to "lose" events and stop processing
them because the event counter doesn't match. Fortunately, the jack
sense detection routine is always called during initalization, so at
least the state during bootup (or module load) will stick.
If you don't want to patch ALSA, can you guys try model=ideapad and test
if jack sense during bootup and/or runtime works? Please also check your
syslog if the driver is really using ideapad mode. It didn't work for
me, that's why I patched ALSA instead.
** Bug watch added: ALSA Bug Tracker #5324
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5324
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https://bugs.launchpad.net/bugs/775788
Title:
Acer 522 / Ubuntu 11.04 / No mic - Sound problems
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