I was searching ho to resolve my problem for a long time and i have the answer so i would like to share it with you:
My GPU Driver was crashing every time i tried to play a game on one screen and play youtube on a second one.
To solve this you just need to tun off hardware acceleration in your browser and it should help.
Pls close it and just keep it for people that have the same problem since its really hard to find solution.
