https://bugzilla.kernel.org/show_bug.cgi?id=176311
--- Comment #7 from Michel Dänzer (michel@daenzer.net) --- Does https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... help for this, by any chance?
BTW, I made a mistake in comment 4, need to test xf86-video-amdgpu here, not xf86-video-ati.