Here is another user reporting the same GDBus errors when trying to enable Screen Sharing on Ubuntu Server 20.04, if I understand correctly:
https://askubuntu.com/questions/1238329 -- 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/1878109 Title: Certain features in the Sharing panel fail with D-Bus related messages when gnome-control-center is run over ssh -X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1878109/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs