xubuntu-desktop depends on lightdm-gtk-greeter, and yet while performing the test case apt wants to pull in unity-greeter instead (see `apt depends lightdm`). This will install various indicator- packages plus gnome-control-center.
Explicitly installing the needed package gives the expected result: sudo apt install xubuntu-desktop lightdm-gtk-greeter ** Changed in: gnome-control-center (Ubuntu) Status: Confirmed => Invalid ** Changed in: indicator-datetime (Ubuntu) Status: Confirmed => Invalid -- 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/1754872 Title: gnome-control-center is unusable on xubuntu-desktop, but called from Gear (About this Computer, System Settings) icon, Text Entry Settings, clock (Time & Date Settings) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1754872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs