Is this still occurring in Ubuntu 10.04 "Lucid Lynx"?
This issue might be fixed upstream in kernel 2.6.35-rc5.
>From the changelog:
commit ac0547dc62e67a3e0b0c1628b6e49efba8f517db
Author: Takashi Iwai
Date: Mon Jul 5 16:50:13 2010 +0200
ALSA: hda - Restore cleared pin controls on resume
Many codecs now clear the pin controls at suspend via snd_hda_shutup_pins()
for reducing the click noise at power-off. But this leaves some pins
uninitialized, and they'll be never recovered after resume.
This patch adds the proper recovery of cleared pin controls on resume.
Also it adds a check of bus->shutdown so that pins won't be cleared at
module unloading.
Reference: Kernel bug 16339
http://bugzilla.kernel.org/show_bug.cgi?id=16339
Cc: <sta...@kernel.org>
Signed-off-by: Takashi Iwai
A PPA of this kernel is available at http://kernel.ubuntu.com/~kernel-
ppa/mainline/
** Bug watch added: Linux Kernel Bug Tracker #16339
http://bugzilla.kernel.org/show_bug.cgi?id=16339
--
Sound broken after resume of Suspend - Toshiba P100
https://bugs.launchpad.net/bugs/125264
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