Yeah,
today I got this problem after I cleaned my PC (Taking the GPU out, canned Air etc. u know the procedure), but now after reassembly and turning it on the Display Ports "wont work"
I tried plugging in the monitors in all of the 3 DP's of my GTX 970 (G1 Gaming).
When I plug them out and plug them in again they turn on from standby mode to on, then the DP NO SIGNAL comes and they turn of again.
And thats how my setup looks usually ...atm im using another monitor over DVI.
I also cant test the Display Ports on my 970 because the two AOC monitors are the only DP monitors we/I have
Already thank you in advance