I've been encountering a problem for a while now with my RX570, every time tab into a different program while playing a game and sometimes when making something such as a browser window fullscreen my monitors flicker black for a while. I'm unsure what is causing this as the card was purchased at the start of 2021 and has been well taken care of. I am running the newest drivers for it and have 2 monitors and a TV connected. One monitor is connected with an HDMI to DisplayPort cable, the other uses an adapter. The HDMI port built into the card is connected to the TV. The TV is not always on and notably aways causes the flickering when it is powered on.
Any ideas about what is going on?
Does it flicker at all when the TV is off?
I would try a clean install of some older drivers.
Try these https://www.amd.com/en/support/kb/release-notes/rn-rad-win-20-8-1 (Go to "Radeon Software Adrenalin ...
Disabling your browser´s GPU acceleration can also help.