Created attachment 96819 [details]
xrandr 1920x1080x23.98 crashed

ok "xrandr --output HDMI-0 --mode 1920x1080 --rate 23.98" crashes the screen.
Same as the OE when playing a 24p video.
[ 4592.767636] [drm:radeon_compute_pll_avivo], 148340 - 14834, pll dividers -
fb: 741.7 ref: 50, post 10
LMK if you need more.