Setup
GPU: rx 9070 (non-xt) Sapphire Pulse
CPU: 9600X
Display: Samsung QN90A with HDMI 2.1 input, supports both Free-sync HDR
Bazzite Version: bazzite-deck:stable 43.20260101
Attempted Change
Previously had connected GPU's HDMI port to HDMI 2.1 port on TV. Switched to using UGREEN DP to HDMI adapter (the one that has been linked to several times recently and got white listed)
Expected behavior
Runs in both Desktop Mode and Steam Gaming Mode.
Actual behavior
Runs fine in Desktop Mode
In Steam Game Mode there is an error:
1. System boots into Steam Gaming Mode fine, as before
2. Steam displays fine for about 20-30 seconds, and I can navigate just fine
3. Screen goes black. Sometimes I can get it to come back briefly if I move my mouse around, but this is very temporary.
What are the next steps I should try to diagnose/fix this?