Comment # 6 on bug 61533 from Eugene

(In reply to comment #3)
> Does setting the env var R600_HYPERZ=0 help?  I suspect this might actually
> be a bug in the 3D driver and you only see it with 3.8 since newer mesa
> features require newer kernels.

No, that evironment variable in /etc/environment file after rebooting doesn't
helped.