https://bugs.freedesktop.org/show_bug.cgi?id=61533
--- Comment #6 from Eugene ken20001@ukr.net --- (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.