After the latest updates with the new Gnome Settings I can change the setup for external monitors.
The problem is that the system doesn't remember the settings, so after a log out (or restart or suspension, etc..) I need always to open again Gnome Settings and set the external monitor as "Single Display". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1714410 Title: Can't change display configuration, Method ApplyConfiguration is not implemented on interface org.gnome.Mutter.DisplayConfig To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1714410/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs