https://bugs.freedesktop.org/show_bug.cgi?id=61529

--- Comment #3 from Thaddaeus Tintenfisch thad.fisch@gmail.com --- I will test your patch as soon as possible. Meanwhile, I just finished bisecting the kernel with the result:

b440bde74f043c8ec31081cb59c9a53ade954701 is the first bad commit