Comment 123 for bug 516412

As of this morning's updates, I will add that on my amd64 x2 rig with 190.xx nvidia drivers, this is still an issue.
alt+printscrn+k restarts gdm and no further issues until the next reboot. I've added "affects me" to the 522692 bug report as well. this isn't resolved, at least for the prop. nvidia folks.