https://bugzilla.kernel.org/show_bug.cgi?id=83461
--- Comment #21 from Christian König deathsimple@vodafone.de --- (In reply to kb from comment #20)
Hi, unfortunately supplied patch does not fix the issue. Do you need some more debug output?
dmesg output generated with drm.debug=0xE on the kernel command line would be nice. But I'm running out of idea what else this could be.