Comment # 2 on bug 90340 from smoki

 Might be some kind of setup issue as Xorg.0.log shows:

[    14.853] (EE) RADEON(0): eglInitialize() failed
[    14.853] (EE) RADEON(0): glamor detected, failed to initialize EGL.

 and 

[    14.437] (II) NVIDIA GLX Module  340.65  Tue Dec  2 09:10:06 PST 2014
...
[    15.071] (EE) Failed to initialize GLX extension (Compatible NVIDIA X
driver not found)