This might be a different issue, but your kernel log is also getting flooded with error messages about the touchpad(?)
https://launchpadlibrarian.net/409195699/CurrentDmesg.txt ** Summary changed: - gnome-shell eats 100% cpu when seconds display is on and screen is locked + [nvidia] gnome-shell eats 100% cpu when seconds display is on and screen is locked ** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu) ** Tags added: nvidia -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1814125 Title: [nvidia] gnome-shell eats 100% cpu when seconds display is on and screen is locked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1814125/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
