Ubuntu has a nice thing to configuring several monitors. It is written in python. I install it even manually... I need it to congfigure screens by my mother and sister... Please somebody intersted in. Reproducible: Always
Upstream looks dead, cf https://bazaar.launchpad.net/~displayconfig-gtk/displayconfig-gtk/ubuntu/revision/140 "Disable displayconfig-gtk in menus (replaced by Screen Resolution tool)"