Laptop has a black screen but it is off

[unknown000000]

I was using my laptop like an hour ago and it was fine....... I left it on while I was doing something and usually it hibernate but when I click or press a button it switches on again
Now it's just a black screen and the light that says it's on is on and disc slot works fine and I don't have a removable battery and I tried switching it off but it's not doing anything. What do I do?

 

[webworkings]

First try powering it off and see if it will start up normally. You may have to wait for it to drain of power. If that doesn't change it, and there is still a black screen, try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.