Quite a few people with monitors featuring high Hz and HDR have this issue, and I found the solution thanks to a colleague who had the same problem with a Benq monitor. Now I don't experience blackouts anymore.
You can find the solution at Reddit. Before my only solution was switching to HDMI...
Don't you just want to post random thoughts/questions which don't belong with any existing thread? Are you lazy or think that what you want to post doesn't deserve the opening of a whole new thread?
This is your place. This is our Kingdom. :-)