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No video as GPU is connected to non-existent display

Breakout_
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I noticed some time ago I have no signal during boot/post and only get video on the Windows' login screen. I went into display settings to find that it said I'm connected to 2 displays when I only have one monitor. It said the non-existent display was a VGA connected to my GPU. One other thing I noticed was that of my 2 DVI ports in my GPU, one wasn't working. Today I tried to foolishly use safe mode to reinstall GPU drivers and now I have no video at all since I'm presuming it's outputting to this non-existent display (and my pc is stuck in safe mode). I tried to blindly disable safe mode using Run, msconfig, pressing ctrl tab then tab twice, space and enter but I think that due to restarting too many times already my PC is stuck in some Windows repair screen before it can login.

 

Is this a GPU issue, a GPU driver issue, or a motherboard issue? Because replacing the GPU will not help if the drivers are still on my PC. But I'm thinking it's not a driver issue since drivers shouldn't affect the POST/bios screen which I can't see either right? In that case its a mobo or GPU issue. I don't have an iGPU by the way, and I have 2 dvi ports on my mobo. Right now I think replacing the GPU should fix it, since I did some research to find that the GPU detecting some electrical load or signal (could this be pci lane instead though??) could make it think its detecting another display. 

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I'm pretty sure you are correct, its some sort of short circuit in that DVI port triggering it to think something is plugged in.

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I've ordered a GPU, if that doesn't fix it, would it then be a mobo issue? 

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2 hours ago, Breakout_ said:

I've ordered a GPU, if that doesn't fix it, would it then be a mobo issue? 

I know  you ordered a new GPU but just as a suggestion 

Try updating the firm ware it vbios in other words for the GPU and see if that helps

 

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