[Solved] Monitor displays blank screen and sometimes Check Signal Cable error

Karen_70

Honorable
Dec 27, 2012
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0
10,510
My external monitor will not work with my laptop all of a sudden, I attempted another monitor, what do I do in this case?
 

mmaatt747

Distinguished
Sep 26, 2011
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19,060
Do you normally have to hit the "Fn" key plus one of the "F" keys (F4 for instance)? to get it to work. On my laptop I sometimes have to do this before it will send the signal to an external monitor. It would be the key that has the little square, screen looking logo on the key.