Can you tell if the "blanking" is either: * The output entering sleep mode; or * A black frame being accidentally flipped.
I guess checking if the backlight is still on would answer that. ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Tags added: wayland ** Tags added: hybrid -- 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/1842009 Title: [Wayland] Screen blanks for a second whenever discrete GPU is powered up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1842009/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs