[Bug 59101] Gnome shell crashes after sleep mode

https://bugzilla.kernel.org/show_bug.cgi?id=59101

--- Comment #3 from Alex Deucher alexdeucher@gmail.com 2013-06-03 14:01:39 --- (In reply to comment #2)

...

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!

seems to be the problem.

-12 mean -ENOMEM. It seems the kernel is out of memory and the driver is not able to allocate the memory it needs to process the rendering commands.

Where is the xorg log file and how can I know the mesa version I'm using ?

the xorg log is usually /var/log/Xorg.0.log

If you are using distro packages, you'll have to check and see what version of mesa you have installed using your package manager.