Bit-depth is certainly an issue these days. I've got a 1920x1080 60Hz 8-bit/color 24" monitor and a 3840x2160 144Hz 10-bit/color 27" monitor. Different resoluti

Bit-depth is certainly an issue these days. I've got a 1920x1080 60Hz 8-bit/color 24" monitor and a 3840x2160 144Hz 10-bit/color 27" monitor. Different resolutions, refresh rates, color depths, sizes, and DPIs, on a very modern system. X doesn't like this. Wayland works much better.