Microphone not working on Ubuntu 14.04 on MacBookPro10,2
Solution 1:
Well I finally found it. Amazing how quickly that happens after you ask a question.
I added the following line to /etc/modprobe.d/alsa-base.conf
options snd-hda-intel model=mbp101
Credit goes to fooblahblah https://bbs.archlinux.org/viewtopic.php?id=144255&p=4
So happy right now.