The same for me. If you run alsamixer in separate terminal you will see thatwhen you plug headphones someone (driver/alsa/pulseaudio) disable speakers and master channel. You can reenable this in pulseaudio setting by reverting back output to speakers.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/878378 Title: Headphones not working after upgrade to 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/878378/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs