I have the same issue, Having two external monitor connected to a DELL Dock TB16 and Dock connected to my Dell XPS 13 laptop. I can also confirm that dreamwalker workaround worked for me. When I activate the laptop screen the UI started working draging the screen icons on the display arrangement window in gnome settings (device) page (gnome-control-center). Then after arrangement was set I diactivated the laptop screen before confirming all by pressing apply.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1724955 Title: unable to drag monitors in Display Arrangement To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1724955/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
