-(screensaver activation and deactivation) has 2 managers right now. oble and
-gnome-screensaver have independent criteria for activation and deactivation.
-oble relies only on time since face detected, gss relies on time since keyboard
-or mouse state change. this causes annoying problems.
- * example: gss activates screensaver on timeout even though face is clearly
- detected the whole time.
- * workaround: make gss timeout be as long as possible
-there are other problems.
-the real fix is to combine the two. user activity should be any of {keyboard,
-mouse, face detection}.