The error message "Failed to post KMS update: drmModeAtomicCommit: Argument invalide" can only occur in Wayland sessions (which might include the login screen), and it does occur in the above log from bug 1983175 too.
If you would like to discuss a Xorg problem then please open a new bug from the Xorg session by running:
The error message "Failed to post KMS update: drmModeAtomicCo mmit: Argument invalide" can only occur in Wayland sessions (which might include the login screen), and it does occur in the above log from bug 1983175 too.
If you would like to discuss a Xorg problem then please open a new bug from the Xorg session by running:
ubuntu-bug gnome-shell