The upstream kernel 3.4-rc5 should fix this. It contains the following
patch:
author Linus Torvalds
Thu, 26 Apr 2012 22:32:39 +0000 (15:32 -0700)
committer Linus Torvalds
Thu, 26 Apr 2012 22:32:39 +0000 (15:32 -0700)
commit 2390c0fca6d31af0c1194a491d9629fbe27703b8
tree 303f982c94a75339c93d4468df54b86fdd2abdd9
parent 65dd4b91080157fce76a3d60338e33dfa02c4bf8
parent cff7873554eedc044029c41a9fd694245d97eff8
Merge tag 'sound-3.4' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A workaround for an ASUS laptop and a few ASoC changes; most of the
commits are tagged for stable, too."
* tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8994: Improve sequencing of AIF channel enables
ALSA: HDA: Add external mic quirk for Asus Zenbook UX31E
ASoC: fsi: update for dmaengine prep_slave_sg fallout.
ASoC: core: Fix card RTD count for deferred probe.
ASoC: cs42l73: don't use negative array index
ASoC: dapm: Ensure power gets managed for line widgets
I couldn't narrow it down to the actual commit, perhaps someone from
Ubuntu can do that if they want to make an SRU.
A PPA of kernel 3.4-rc5 is available at http://kernel.ubuntu.com
/~kernel-ppa/mainline/
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https://bugs.launchpad.net/bugs/970198
Title:
[Asus UX31E, Realtek ALC269VB] external mic don't work
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