Oh, Ubuntu GNOME 13.10 doesn't install gnome-screensaver by default since Ubuntu GNOME doesn't actually use it.
Unity does recommend indicator-session which recommends gnome-screensaver but that's not a hard dependency
(perhaps so that users can replace it with xscreensaver or whatever).
We need to figure out a way to test whether a gsettings key exists before trying to load it (see bug 1195481 for another example of this kind of bug).
Oh, Ubuntu GNOME 13.10 doesn't install gnome-screensaver by default since Ubuntu GNOME doesn't actually use it.
Unity does recommend indicator-session which recommends gnome-screensaver but that's not a hard dependency
(perhaps so that users can replace it with xscreensaver or whatever).
We need to figure out a way to test whether a gsettings key exists before trying to load it (see bug 1195481 for another example of this kind of bug).