Another idea: You seem to be using the default Xorg session so that increases the possible set of components that could tamper with the power state. Please try logging into 'Ubuntu on Wayland' to see if the problem happens there.
And another idea: Check that you don't have 'tlp' installed. It causes random power management bugs. Assuming the issue is not tlp, please also report it upstream at: https://gitlab.gnome.org/GNOME/mutter/issues If you are feeling adventurous then it might help to figure out the exact time of day the display is waking. Like with a timelapse video next to a clock that's synchronized to the machine's clock. That could then be compared to the system log or might spark other ideas. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882462 Title: Displays wake up pre-maturely (likely driven by notification) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1882462/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
