Thank you so much David. I uninstalled the alsa-hda-... package and then reinstalled https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules, and now it works! Oh glorious sound. :)
** Changed in: alsa-driver (Ubuntu) Status: Incomplete => Fix Released -- [HDA-Intel - HDA Intel] ALSA - no audio with Gigabyte G31M-ES2L motherboard https://bugs.launchpad.net/bugs/680381 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