Bug#922160: lightdm: Add elogind support

[Mark Hindley <mark@hindley.org.uk>]

On Fri, Feb 22, 2019 at 07:17:55PM +0100, Ansgar wrote:
> > > So the PAM configuration is no longer relevant?
> > 
> > Yes, I think the PAM configuration change is still required.
> 
> So the logind dependency is still wrong as a different logind provider
> than those listed in the PAM configuration won't work?

No, I think the problem is that the PAM configuration for lightdm-greeter
doesn't source common-session. If it did, the logind dependency would be
sufficient.

Mark