Comment # 4 on bug 71448 from Alex Deucher

(In reply to comment #0)
> http://bpaste.net/show/148239/

In the future, please attach the output rather than referring to an external
site that may go away at some point.

> 
> kernel is 3.13 (~agd5f drm-next-3.13).
> The whole graphic stack is from git except xorg-server which is 1.14.3.

from your log:
FATAL: get_bits failed : No backend implementation could be loaded.!!    

There's some problem with your build.