https://bugzilla.kernel.org/show_bug.cgi?id=201067
--- Comment #7 from Dave Johnson (dave@locochino.com) --- (In reply to Nicholas Kazlauskas from comment #6)
I think you're referencing this patch:
https://patchwork.freedesktop.org/patch/238065/
Which should be fixed in 4.18.
Please post a new ticket with a full dmesg log, Xorg log and your distro/desktop environment if you can still reproduce the problem.
Ok, so yes and no I guess. I was assuming a single bug while there are apparently two. The one that causes video corruption and artifacts is in fact fixed for me now, but the multi-head support is still broken. It worked a couple of kernels ago, opening a new bug report over at opensuse since it seems to be opensuse specific for some reason (other live CDs work fine, looks like it's just something with Tumbleweed for whatever reason)