> It seems you installed 16.04 originally, but were you coming from 18.04 this time?
I bought the laptop with 16.04, I upgraded to 18.04 and now focal, yes. > - What's the output of > $ dpkg -l | grep gnome-control-center ? ~$ dpkg -l | grep gnome-control-center ii gnome-control-center-data 1:3.34.1-1ubuntu3 all configuration applets for GNOME - data files > also how did you upgrade? using the dist-upgrader or editing sources/using apt? the dist-upgrader refused to upgrade, bailing out with something about a pre-release (sorry I didn't copy the message), so I edited /etc/apt/sources.list (all other sources were disabled by the upgrade to 1804 and I didn't re-enable them) I'll attach the requested bits before trying the 'apt install'. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861991 Title: upgraded to focal yesterday, I've got no control panel, my theme is weird, and alt-tab isn't working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1861991/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs