I recently purchased a 120hz 4k Sony TV and I was able to use it as a 4k display with my pc until it suddenly stopped working. Now whenever I use any of the hdmi ports on my gpu it displays a green artifacted screen.
It only occurs with my 3070, and thus particular TV, my monitors provide a fine connection and when I connect it to different TV's it is also fine. I've swapped gpus and used my old 1060 with my Sony TV and that works fine as well.
From what I've read it just seems like there is an issue with the handshake between the two of them. If it's possible to reset it I'd like to know how I could.