Comment 12 for bug 1699898

Actually the above was a little hasty. For some reason the screen saver got deactivated,
and it had nothing to do with caffeine.

So here is what happens: when I issue the command

xdg-screensaver suspend anexistingwindownumber

I get the following error

org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager wa
s not provided by any .service files