Unfortunately I was never able to solve this. It appears the Windows issue (referenced above) remains as well. Maybe an examination of the Apple/OSX driver (if that's even possible) would lead to a solution here.
As a work-around I purchased a small USB sound card and plugged into that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1410618 Title: MacBook Air 6,2 TRRS Headset Mic Not Working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1410618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs