https://bugs.freedesktop.org/show_bug.cgi?id=90681
--- Comment #8 from Richard Bradfield bradfirj@fstab.me --- (In reply to Alex Deucher from comment #6)
Actually reverting the commit is probably the proper fix.
Reverting the commit doesn't fix the issue, there is still a kernel Oops upon hotplugging the monitor. I'll dig into the trace.