help. Toshiba laptop...

[sambam13]

so i have a toshiba i was looking at the settings on the side of screen i clicked on one and now my screen is completely black what can I do to get my screen back??...

 

[Augmentum]

Maybe you could press the f4 key or the "fn" key + f4 key or whatever key it is on there. it's the one where it changes the display.