[SOLVED] Black screen when startup/ no signal

Dec 31, 2018
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I try to boot up my pc (monitor connected to gpu using dvi cable) and the mobo screen shows up with very small resolution after which one of these two happen:

1. the screen goes black and the monitor suggests a resolution of 1080x1920.

2. The monitor informs me that there is no signal


I tried to use hdmi and it worked normally but cannot go back to 60Hz. I also removed the gpu and plugged the dvi cable into the mobo and it worked. Can this mean there is a problem with the gpu's dvi port?

I lately moved my pc out of the living room back into my bedroom after lans and this happened. I have used the same monitor, pc and dvi cable during and before the lans. Very strange...

What do i do??

(Picture of dvi port on gpu): https://imgur.com/a/SdLnkzm
 
Solution
You need to setup your monitor I think.

If you have a display when plugged in to the motherboard, that means you have an APU (or iCPU). You could plugged your monitor into both.