Read http://www.cnet.com/forums/post/30c241c5-dd8b-4d73-b08d-c6e15897fe5f/ and try that generic reset.
If that fails look around for this laptop's LCD on/off FnKey combo. Yes, I understand folk need a lot of privacy but omitting the make, model, hinders me from telling you to try Fn+which Fkey.
After that try an external monitor.
I was doing homework on my Bunk bed and I fell asleep while doing it. I woke up the next day and my laptop was on the ground and the screen wouldn't turn on, everything else turned on but the screen didn't. I have tried everything I can think of I even searched it up online, but nothing is working. does anyone know what I can do to fix it without going and paying to get it fixed?