Comment 39 for bug 1109309

c2fb7916927e989ea424e61ce5fe617e54878827 is the first bad commit:

commit c2fb7916927e989ea424e61ce5fe617e54878827
Merge: 29de6ce 6f0c058
Author: Daniel Vetter <email address hidden>
Date: Mon Oct 22 14:34:51 2012 +0200

    Merge tag 'v3.7-rc2' into drm-intel-next-queued

    Linux 3.7-rc2

This is a pretty large patch set, and cannot be reverted easily. I will probably need to contact upstream about this.

Before I contact upstream, can you test the latest mainline kernel, just to confirm it's not fixed yet:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc2-raring/