It appears the upgrade did not complete because you have package versions from 23.10 and the system still reports itself as 22.04. Please also note that 23.10 reaches end of life this month! So we recommend reinstalling either 22.04 or 24.04.
As for the lag you are experiencing right now, I don't yet have enough information to be able to tell what the cause of that is. Please run: journalctl -b0 > journal.txt journalctl -b-1 > prevjournal.txt lspci -k > lspci.txt dpkg -l > packages.txt ps -e -o pid,pcpu,comm --sort -pcpu | head -20 > tops.txt and attach the resulting text files here. ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete ** Package changed: gnome-shell (Ubuntu) => ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2071708 Title: lags To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2071708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs