Steam Link

Steam Link

Screen all scrambled up at 1440p
Hi!
Since Samsung abandons Steam link app, I started experimenting with my Raspberry Pi. My setup is a PC (RTX 3060Ti) with two monitors: one 1080p and the main one is 1440p in landscape mode. Raspberry Pi 4 running Steam Link hooked up to 4k TV. Everything is working fine if I set it to 1080p on the client side. But as soon as I switch it to 1440p the screen on the TV get all scrambled up. You can see some resemblance of icons on the desktop but they seem to be in the wrong place. The cursor is always fine and in the correct spot through. When I move mouse to that 1080p monitor, than the TV shows proper picture of what's on that smaller desktop. It only breaks down on the bigger one.
Any suggestions? Has anyone encountered similar problem?