In my case, adding MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 to /etc/environment worked. After reboot, the screen turns off and stays off. I will do further testing if this has some side effects.
-- 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/1929650 Title: Screen doesn't turn off when using Wayland on some devices To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1929650/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
