Yes, the bug also exists in upstream kernel - though I don't know if it's actually a kernel bug. (I just didn't know which package to pick.)
It looks like something caused the audio settings to change during the upgrade. ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1244501 Title: Regression: audio stopped working after upgrade to 13.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1244501/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs