Sorry for thread necro. But I was facing the same problem connecting my PC to my 4K tv, so going through the solutions, none of them worked.
But, I did manage to fix the problem permanently.
go to nvidia control panel > Adjust desktop size and position > Select Scaling Method > set it to Full Screen instead of aspect ratio.
Hope this helps.
Hey, did the workaround posted help at all?Originally Posted by Lightzscar27 Go to original post