Well, there's also ddccontrol: https://github.com/ddccontrol/ddccontrol https://github.com/ddccontrol/ddccontrol that has an optional GUI. I think that's the on

Well, there's also ddccontrol: https://github.com/ddccontrol/ddccontrol https://github.com/ddccontrol/ddccontrol that has an optional GUI. I think that's the one I've used in the past. Pretty much all monitor settings are exposed.