This bug is fixed upstream in kernel 2.6.37-rc1. From the changelog:
commit 6cb3b707f95954ac18f19b4b3919af235738371a
Author: David Henningsson
Date: Thu Sep 9 08:51:44 2010 +0200
ALSA: HDA: Add fixup pins for Ideapad Y550
By adding the subwoofer as a speaker pin, it is treated correctly when
auto-muting.
BugLink: https://launchpad.net/bugs/611803
Signed-off-by: David Henningsson
Signed-off-by: Takashi Iwai
A PPA of this kernel is available at http://kernel.ubuntu.com/~kernel-
ppa/mainline/
--
[Lenovo IdeaPad Y550A] Subwoofer don't mute/unmute on plugging external
acoustics
https://bugs.launchpad.net/bugs/611803
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
