Here's the xrandr. It looks like 0x0 is selected for display Virtual2 and maybe this is confusing g-c-c.
** Attachment added: "xrandr" https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1851189/+attachment/5302626/+files/xrandr -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851189 Title: gnome-control-center can't configure second virtualbox display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1851189/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs