While display is off u-s-c focuses a newly spawned greeter session that has its own display configuration. Mir applies that configuration as a reaction to the focus change. That display configuration has power mode set to on - hence display is also turned on again..
** Also affects: unity-system-compositor Importance: Undecided Status: New ** Changed in: unity-system-compositor Assignee: (unassigned) => Andreas Pokorny (andreas-pokorny) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1297876 Title: Screen turns on when a new session/surface appears To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1297876/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs