Comment 91 for bug 141445

@ Rex
I knew there had to be some easy command like that.. but I guess i proved that linux allows people to do stuff in a multitude of ways. Anyway, thanks!
However, you can more easily set it up as by going to system preferences -> startup applications, and adding a new startup application with the command " amixer sset 'Input Source' 'Int DMic' ". This is run after login, in userspace AFAIK.

Mihai