I have the same problem. No audio when plugging in the headphones. The internal speakers of my laptop work fine.
None of the suggested workarounds (pavucontrol, alsamixer) has helped. The headphones remain silent. -- [Karmic] No sound with jack output now with PulseAudio 1:0.9.16~test4-0ubuntu1 https://bugs.launchpad.net/bugs/409759 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs