Have working setup with external monitor with same resolution as my laptop screen. But the dpi on laptop is 210 and on external screen is 110. It’s almost impossible to use it with same scaling together. Tried xrandr scaling and it’s ugly looking. As far as i understand there are no other simple options available on X. Found that wayland should have better hidpi and scaling support, trying gnome now but it’s not what i want from my linux setup
Do you guys know better solution for this case?