Sure enough - it would appear the windows driver doesn't support the TRRS mic on this CS4208 chip either: https://discussions.apple.com/thread/5862553
So then, OSX's driver for the chip would likely hold the key to this. -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
