https://bugzilla.kernel.org/show_bug.cgi?id=60523
--- Comment #61 from Tobias Droste tdroste@gmx.de --- I'm currently running drm-next from that day+your patch.
It does not seem to be the same problem for me, because mlck is 120000 for every level as soon as there's a second screen and only level 2 stays stuck.