Found the following two entries had been added to /etc/apt/sources.list following automatic updates. deb [trusted=yes] http://ftp.us.debian.org/debian experimental main deb [trusted=yes] http://ftp.us.debian.org/debian sid main
Commented them out and performed apt update. Then purged the following packages: apt purge gnome-settings-daemon gdm3 gnome-control-center gnome-initial-setup gnome-power-manager gnome-shell uatter ubuntu-desktop ubuntu-session This removed these packages, then reinstalled all pre-existing packages. Reboot returned system to normal functionality. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802677 Title: Unmet Dependencies: gnome-settings-daemon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1802677/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs