HDMI display port adapters no longer work in steam gamemode (desktop works fine)

my tv shows a black screen whenever trying to accses steam game mode.

I think it maybe the resolution steam is trying to run out.

Is there anyway to force steam to run at a certain resolution or force a "safe mode"?

I noticed on my deck that in display settings there is an option for a "safe mode" but I can't accses it on my pc because I get no output and the option dosn't seem to be available on the desktop

Sys info:
https://paste.centos.org/view/1b982d0c
Solution
This has to do with the EDID probe bits in gamescope session ; remove .confg/gamescope
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