Have recently faced the same issue on Ubuntu 18.04. It occurs rather frequently, sometimes, within ten minutes. Previously, it has never occurred. Same message is printed in the logs.
Upgrade to Ubuntu 20.04, which ships GNOME Shell 3.36.2, did not help.
Have recently faced the same issue on Ubuntu 18.04. It occurs rather frequently, sometimes, within ten minutes. Previously, it has never occurred. Same message is printed in the logs.
Upgrade to Ubuntu 20.04, which ships GNOME Shell 3.36.2, did not help.
There is an immediate workaround, documented on the unix stack exchange/ Switching to login screen (Ctrl+Alt+F1) and back to the main (Ctrl+Alt+F2) helps: https:/ /unix.stackexch ange.com/ questions/ 502315/ gnome-partially -stops- responding- to-mouse- keyboard