1. Please run the 'Extensions' app and remove/disable any extensions not provided by Ubuntu.
2. If you are using indicator-multiload then please uninstall that (bug 784055). 3. If the problem still persists after rebooting then please run these commands: lspci -k > lspcik.txt gsettings list-recursively org.gnome.shell > settings.txt journalctl -b0 > journal.txt sudo apt install mesa-utils glxinfo > glxinfo.txt and attach the resulting text files here. ** Tags added: performance ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1889377 Title: gnome-shell using lot of CPU (costantly 30% - often up to 100%) making my system quite slow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1889377/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs