https://bugs.freedesktop.org/show_bug.cgi?id=100289
--- Comment #18 from Michel Dänzer michel@daenzer.net --- (In reply to OmegaPhil from comment #17)
The current state is good enough for me - you could counter and say that there should be no disconnect event in the first place, [...]
AFAIK that's up to the monitor (settings?), or possibly even a general issue with DisplayPort.