on /etc/sysconfig

[Bill Nottingham]

David Michael (fedora.dm0 at gmail.com) said: 
> > what then out of interest is the replacement for a
> > /etc/sysconfig/desktop file that defines which login manager should be
> > the default (and which is not there by default)? Can KDM then be
> > started when X starts and not GDM without the use of the above file?
> 
> I recently brought up this question on systemd-devel as I was
> packaging a desktop environment with a display manager, and it sounded
> like there would be a push to move away from prefdm itself in favor of
> giving each display manager a service file.  I implemented this in the
> package and switch between display managers with the following command
> (with "newdm" being the selected one).
> 
> ln -fs /lib/systemd/system/newdm.service
> /etc/systemd/system/display-manager.service

Right, but that then causes 'last one wins' behavior among multiple DMs.

I suppose we could use alternatives for this, as much as I dislike it.

Bill