[SOLVED] Weird display problem on laptop

[vistagamer6969]

Hello!
I've found about 3 weeks ago my old laptop - fujitsu amilo li 2727 model 2228 - and when I power it on it just displayed a white screen then slowly (about 1-2 minutes) became black.
I've plugged it in my monitor thru a VGA to VGA cable and it showed up an error "Cannot display this video mode. Change input to 1080p@60" or something between these lines which means a single thing: my motherboard isn't dead otherwise it must show "No video input" error, isn't it?
I already changed the display and does the same thing.
I can't test on more monitors because I own just 1. Same with VGA cables.

 

[hang-the-9]

Turn on the laptop with the external screen and keyboard/mouse connected, turn it on and close the screen right after you turn it on. It may detect the external screen as the main display and show you something.