Computer not connecting with monitor, keyboard, mouse?

T43331

Reputable
Dec 21, 2014
2
0
4,510
I was just watching a movie on my desktop, I pause it and left my room for a few minutes then when I come back I see the monitor fading out like it would if its going into sleep mode. Then my running computer turned silent, I thought its going to sleep mode but the small green light wasn't flashing, it is just off.
Now when I turn it back on, the monitor receives no signal, neither does the keyboard, the mouse, and and external cd drive I was using. I check the connection and it was all plugged in, it seems like my computer is rejecting all external devices,
Help!