I wonder if this is related to bug 1923335. That also has an issue with the screen flashing back on when it should be off.
** Package changed: gdm3 (Ubuntu) => mutter (Ubuntu) ** Also affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags added: focal -- 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/1939163 Title: Screen splash when suspend or resume on I+N platform To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1939163/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs