https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_cirrus.c?id=ffe4d12b151018e831f0ca2e05fe78a55238c517
Try the step in the bug report to verify that you need similar fix : https://bugzilla.kernel.org/show_bug.cgi?id=50781 ** Bug watch added: Linux Kernel Bug Tracker #50781 http://bugzilla.kernel.org/show_bug.cgi?id=50781 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1566596 Title: MBP 8,2 internal microphone stopped working Status in alsa-driver package in Ubuntu: Incomplete Bug description: The internal microphone doesn't work in a Ubuntu Xenial installation. The concrete model is Cirrus Logic CS4206. I've tested with the Xenial live usb (2nd beta) and it doesn't work either, so it doesn't look line I've broken something. However with the Wily live CD (both standard Ubuntu and Kubuntu) it works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1566596/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp