I pushed the power button on. And on the top of my screen it said press fn-x to restore the system to normal but I diit's rema

[kingsghost1970]

My screen is blank pushed fn-x to return the system to normal bit screen has been blank for 20 min
So what do I do now

 

[kingsghost1970]

I erased fn-x to restore the system back to normal but the screen has been blank for 30 min what do I need to do