Second Monitor Won't Work

So i have 2 AOC FREESYNC monitors (http://aoc-europe.com/en/products/g2460vq6) 

And in the morning both monitors worked fine, i had no problems. After going away for a few hours i came back and one of my monitors wouldn't find any signal.   

Now the monitor that doesn't work is turned on and i have 3 options "D-SUB, HDMI and DP". I've always used the "DP" option on it, but still for that monitor i have a VGA Cable and a so called "D" cable (https://www.google.no/search?q=D+Cable&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjH9NOe6ZDUAhWiKJoKHTy0AA8Q_AUICigB&biw=1920&bih=950#imgrc=eEmhibivnS79QM:). 

Now for some reason the monitor will turn ON, but it gives me "No Signal". I'm not the best when it comes to computers, but I've plugged everything out and back in. So please help me out, if needed i'm on TS... 

I would recommend you to switch cable to an HDMI in case the port on your computer or your screen may be broken.

+1

at least with HDMI you will be able to see if the Display port cable is the limiting factor

+1

Have you tried restarting the computer?

Computer problem is fixed - Thanks to Alex Nobel

yay