The log messages you mention seem to be describing symptoms of the problem but not the cause.
In order to find the cause of the problem, first please try uninstalling the 'gsconnect' extension and then reboot. Then tell us if the problem still happens. Please also run these commands and send us the output of each: lspci -k glxinfo | grep OpenGL ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete ** Tags added: performance -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826219 Title: Input locks frequently/high CPU usage after 18.10->19.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1826219/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs