Le Sun, 05 Aug 2012 10:43:08 +0200,
Yves-Alexis Perez <cor...@debian.org> a écrit :
> Ok, so lightdm and gdm “API”s are not compatible. GDM uses session bus
> while lightdm uses system bus.
This is exactly whay I tried to say from the beginning ;)
> > > > > > Ubuntu ships a gdmflexiserver script doing the --system dbus-send
> > > > > > call located
> > > > > > in a directory placed at the beginning of PATH which can be
> > > > > > considered as an
> > > > > > (ugly) workaround. Listening to session bus (if this is standard)
> > > > > > may be better.
> > > > > >
> > > > >
> > > > > The script is upstream, but I remove it on purpose. But How could
> > > > > lightdm listen on the session bus, which is owned by the user, afaict.
> > > >
> > > > No idea. But why remove the script, if they think that this is The
> > > > Right Way™ ?
> > >
> > > Because there's no way I'll add /usr/lib/lightdm in $PATH of a user.
> >
> > Didn't know there was such an implication, but I agree this is a good
> > reason.
> > What about a kind of divert ? There is already a dialog asking which DM we
> > prefer, I suppose it may update an alternative alongside modifying the file.
>
> That won't work, see above.
I don't see how it is related. Imagine:
/usr/bin/flexiserver -> /etc/alternatives/flexiserver
/etc/alternatives/flexiserver -> /usr/bin/gdmflexiserver
-> /usr/lib/lightdm/gdmflexiserver
But that would require changes in all gdmflexiserver callers and gdm itself.
A compromise could be :
/usr/bin/gdmflexiserver -> /etc/alternatives/gdmflexiserver
/etc/alternatives/gdmflexiserver -> /usr/bin/gdmflexiserver.gdm (or elsewhere)
-> /usr/lib/lightdm/gdmflexiserver
which is hackish but avoids GNOME changes.
> Ok. But then consider lightdm as not supporting user switching :)
This is what I did, so I will stop bother you with that, and this bug can remain
as a placeholder for someone with a magic idea to implement. ;)
Nevertheless, thanks for your very fast replies!
--
Jonathan Michalon
IT student in Strasbourg
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