Comment 8 for bug 1291574

Maybe is needed to try a temporal or a permanent disabling (deactivation) of nouveau driver, by blacklisting the driver. Temporal is done by using the kernel parameter nouveau.blacklist=yes. Permanent is done by adding the line 'blacklist nouveau' in the end of file /etc/modprobe.d/blacklist.conf.

For more information please read these:
http://askubuntu.com/questions/110341/how-to-blacklist-kernel-modules
http://forums.fedoraforum.org/showthread.php?t=300720