I have a 4k 240hz monitor. it works fine with hdmi on 60hz. Today I plugged it in via dp and at first it worked fine with 240hz, but now (after turning my screen off for a bit) every time I try to use the monitor with dp, kde crashes (get notifications and the system doesn’t react anymore) and I have to restart.
I’m on fedora 43 kde with a 7900xtx so there shouldn’t be a problem hardware wise.