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: ubuntu-bug gnome-shell -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1968040 Title: Blanked screen doesn't wake up after locking [drmModeAtomicCommit: Argument invalide] [drmModeAtomicCommit: Invalid argument] To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1968040/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
