1 Copper

Re: TB 16 Dock Thunderbolt Flashing (Black screen)

I'm running into this as well, I don't have a 4k external monitor but my laptop screen is 4k, would that make a difference?

for me it happens whenever I wake up my laptop when I lock my screen during my lunch hour

I saw if you switch from a hdmi to a displayport cable it'd resolve the problem, is that true?