By accident, I found another data point for this bug: Normally, I have the headphones unplugged when I switch my PC on, and the bug manifests itself as described above.
However, if the headphones are plugged in when I switch the PC on, it works like this: - the headphones work normally - if the headphones are unplugged, then there is no sound at all ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1180526 Title: [13.04] No automute w/ Intel HD Audio after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1180526/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs