The abovementioned patch has been included upstream in kernel 2.6.37-rc7. From the changelog:
commit fe67b24010c66a14d84117ac67d23ed1bcb18a71 Author: David Henningsson Date: Wed Dec 15 08:01:46 2010 +0100 ALSA: HDA: Fix auto-mute on Lenovo Edge 14 BugLink: http://launchpad.net/bugs/690530 The SKU value of this machine dictates that auto-mute should be disabled. Since the SKU value is similar to the PCI SSID, the most likely conclusion is that the SKU value should be ignored. Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/690530 Title: No automute on Lenovo Edge 14 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs