https://bugs.freedesktop.org/show_bug.cgi?id=91518
--- Comment #4 from Gustaw Smolarczyk wielkiegie@gmail.com --- Created attachment 117479 --> https://bugs.freedesktop.org/attachment.cgi?id=117479&action=edit dmesg with GPU lock-up
Commenting the old heaven profiles from ~/.drirc didn't help. Or maybe it did change the behavior somewhat.
Attached is the relevant fragment of kern.log. The GPU did restart a few times but eventually the system locked-up.
What's more, when the freeze happened the loading screen was displayed. So the problem happened even earlier then before. It might have happened that way by chance though.