I can confirm that the upstream fix actually solves the problem. I've been using the patch since Lucid until now (Maverick). Attached is my alsa-info.
** Attachment added: "alsa-info.txt.hkbDl9TvVg" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/383263/+attachment/1683956/+files/alsa-info.txt.hkbDl9TvVg -- [Lenovo IdeaPad Y430] Subwoofer don't mute/unmute on plugging external acoustics https://bugs.launchpad.net/bugs/383263 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs