I use a 55" TV as display. fedora 37 and nvidia driver from rpm fusion repo. A DP->HDMI cable.
Same hardware, windows 11 show at 4K@60Hz, but wayland and x11 all show 4K@30Hz. I had changed different DP port to test.
In setting/display interface, I got two display devices. The first device has max 30Hz refresh rate, the second one has a fixed 60 Hz. If I select the second “unknown” device as primary, it still show on first device but the panel and dock disappeared.
How can I detect this issues?