https://bugs.freedesktop.org/show_bug.cgi?id=77274
--- Comment #6 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #5)
I'm sorry about having pointed to an external pastebin, I've attached dmesg and Xorg.0.log to the discussion now.
I'm quite sure I'm experiencing the same issues of the bug 77002 so I'm going to follow that discussion.
I don't know what you mean for bisecting but if needed I can try with different kernels, the last one that worked for me was the 3.13.8. I can also try patches or test on different hardwares.
If the fix from that bug does it, you can mark this as a duplicate.