Pavel's workaround works, somewhat. I can now select "Analog Output" from the menu and only the headphones work. However switching back does not work, i.e. the speakers remain silent and the headphones continue.
I think this bug is related to the new jack sensing ability that is now present in Oneiric. I think it does not sense (or ignore) when headphones are plugged in. Natty worked fine because it had the drop-down by default. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/871633 Title: [HP Pavilion dv6, IDT 92HD75B3] Line out does not mute internal speakers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/871633/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs