https://bugzilla.kernel.org/show_bug.cgi?id=68571
--- Comment #68 from kilobug@kilobug.org --- So I did a bit more tests, I had a few freezes mostly in non-GL tasks (terminal, ...). SAK does work to kill X and reset the card, thanks perry3d for the tip.
Here is a dmesg after a freeze and a SAK this morning.