I'm seeing this same issue on Ubuntu 12.04 64bit on a Lenovo W520. The WORKAROUND fixes my issue also (Selecting "Dock Microphone" from pavucontrol)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1037642 Title: headset microphone no longer detected and therefore won't record To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1037642/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
