We have installed ubuntu 18.04 with KDE with two nvidia Quadro 2000 video cards. Everytime when an user logs in the KDE will display a different display settings, for example re-arrange monitor, different resolution. We have a /etc/X11/xorg.conf in place but it seems apply to the login screen.

One article I read is to disable KScreen by go to K Menu->Computer->System Settings->System Administration->Startup and Shutdown->Service Manager. Look for a service called KScreen, and uncheck the Use box. You can stop the service now if you want. This solution is per user basis. I would like to set it as a policy. How do I do that? What if I remove kscreen package, would that mess up the system?

I believe you should be able to remove the kscreen package without consequence. As I understand it just wraps XRandR to provide the user(s) the ability to set their own screen settings without resorting to editing the underlying config files.

To disable it, go to K Menu->Computer->System Settings->System Administration->Startup and Shutdown->Service Manager. Look for a service called KScreen, and uncheck the Use box. You can stop the service now if you want.





TellTheBell