Black screen when turning on my Acer laptop

Dustybin

Commendable
Feb 24, 2016
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What model of Acer? Check you haven't used the function keys to change it to a monitor output, not sure exactly for your laptop but on mine you hold the blue FN button and press one of the number keys with a symbol like a rectangle on it to switch between modes.

If it isn't that, does it seem like the computer is booting can you hear a windows startup sound all the lights are flashing normally?
 

Spahynes57

Commendable
Oct 4, 2016
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1,510