I just got it working, but have absolutely no idea how or why. I modified some BIOS settings (related mostly to virtualization, but also a couple of security settings) in order to run a virtual machine (completely unrelated to the sound issues) and either this or something else that happened around the same time seems to have taken care of the problem. The only thing I know is that it was not the reboot (since I had already rebooted the computer several times after following every step in https://help.ubuntu.com/community/SoundTroubleshootingProcedure )...
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996546 Title: Lost headphone sound after daily update on Ubuntu 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/996546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
