Thanks for the bug report. 1. It looks like you don't have any custom extensions installed, is that correct? You can check using the app called 'Extensions' where there should be only 3 default extensions listed.
2. Next time the problem is happening, please open a Terminal and run: journalctl -b0 > journal.txt 3. Attach the resulting text file here. ** Tags added: nvidia performance ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928791 Title: gnome-shell runs on 60--100% CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1928791/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs