I've the same problem in a fresh install of oneiric : the sound is play on both headphones and Loudspeakers. No possibility to switch.
Like Colin, i install gnome-alsamixer. The box for headphone sense was already active. If i blank it : no sound at all on both headphones and Loudspeakers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778892 Title: sound output both in Loudspeaker and headphone - natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/778892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs