https://bugs.freedesktop.org/show_bug.cgi?id=76998

--- Comment #4 from tcl_de@gmx.net --- I did a small "bisection" and installed the 3.9.0-030900-generic, 3.10.0-031000-generic and 3.14.0-031400-generic kernels from the Ubuntu MainlineBuilds.

3.9 works, 3.10 and 3.14 hang.

The attached logs are for the 3.9 kernel.

I'm sorry, I prefer not to do a git bisect because I can only spend a limited amount of time on this bug.