OK so there are at least three separate bugs relating to the same log message. It might be a good idea to choose which one you subscribe to carefully:
Bug 1857392: The messages appear occasionally and do not impact performance. Bug 1777708: The messages appear when switching between multiple keyboards and input is slow to respond. Bug 1920867: The same one message floods the log and the shell is unusable. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1857392 Title: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10). Status in GNOME Shell: Unknown Status in gnome-shell package in Ubuntu: Confirmed Bug description: 1) Ubuntu 19.10 2) Gnome 3.34.1 3) No error. 4) Error in Ubuntu Logs App. Sender: gnome-shell Message: 4:49:03 PM gnome-shell: GNOME Shell started at Mon Dec 23 2019 16:48:51 GMT-0600 (CST) 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 36 with keysym 36 (keycode f). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 35 with keysym 35 (keycode e). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 34 with keysym 34 (keycode d). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 32 with keysym 32 (keycode b). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 39 with keysym 39 (keycode 12). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 33 with keysym 33 (keycode c). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 38 with keysym 38 (keycode 11). 4:49:02 PM gnome-shell: Window manager warning: Overwriting existing binding of keysym 31 with keysym 31 (keycode a). Audit Session: 2 Priority: 6 To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1857392/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp