I just got a new monitor (BENQ GL2580) worked absolutely fine the first time. I went out so I shut my PC down, came back turned on my PC and I got a No Signal Detected. I also noticed that neither my Mouse or Keyboard were lit up so I'm trying to work out if it's a motherboard issue thats causing this. I have plugged in another device to the monitor which worked so I know its not that.
Hardware:
AMD fx6300
Gigabyte 78LMT-USB3
GTX 750ti