Comment 9 for bug 328575

> > If we do auto launch then shouldn't we try to avoid that there is more than one
> > for any given user, i.e. re-use an existing session if it exists?
>
> I think that would make sense, but I don't see a good way to do it short of
> kernel support. Note if we enforce this in libdbus, we should also enforce one
> X server per uid.
>
> Zones I think we basically want to treat the same way as full virtualization,
> i.e. this is the same as if you wanted to connect to your session from a remote
> machine, and the answer there is vino.

I tried with 'su -', dbus-daemon is added one more after each 'su -' and 'gconf-editor'. I guess avoiding dup dbus-daemon is a different problem. Should I report another bug?