And I think you answered your own question nicely. Hint: (Screen)
Ok, here is my problem:
When I power on my computer screen (the computer is on too) it goes good for about 2-4 seconds and then it goes black. No light at all, but the screen is still on.
I started doing something similar few days ago : when the computer went in sleep mode and I try to bring it back the screen did same but after some times it returned good.
Now it just does what I described first... I tried with another screen and it works perfectly so you guys have any ideas?
Sorry for my poor english, thanks for help!