Question What exactly is causing this?

[mikejohnson345]

https://imgur.com/FqijWhg

I ive had an rx580 for 2 days, the first day everything went ok and yesterday it started doing dis from time to time.

Initially thought it was crashing my whole pc but then i realized that its only visual so i tried unplugging the hdmi adaptor and it worked. Every time this happened, unplugging the cable fixed it but its annyoing when it happens mid game.

Im using gpu hdmi port>hdmi to vga adaptor>vga cable>monitor. This never happened before upgrading so my guess is that something is wrong with the gpu or the adaptor.

Specs: i5 3570, 8gb ram 1333 mhz, gigabyte rx 580 and 550w psu