How to clean LCD moniter screen?

How can i connect my dell laptop to a Lcd acer moniter?

  • i tryed conecting my dell laptop to a lcd acer moniter and i puched fn + crt/lcd but my screen goes black and then blinks once but does not do anything. can anyone help me please , thank you

  • Answer:

    Hello, The external monitor needs to be connected and powered on before you power up the laptop so that it will be detected correctly. Once you do this then the fn + crt/lcd button will toggle between laptop display only, external only or both displays each time you push the keys.

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