On 10/03/18 14:00, Rick Stevens wrote:
Assuming you're starting the GUI from systemd startup, you can find
which is used by default by doing something like:

        [root@prophead ~]# ls -l /etc/systemd/system/display-manager.service
        lrwxrwxrwx. 1 root root 39 Oct 17  2016
/etc/systemd/system/display-manager.service ->
/usr/lib/systemd/system/lightdm.service

So by default, systemd will spin up the lightdm display manager. I think
that's set up by a scriptlet when you install XFCE but I won't swear to
it.
.
[root@box83 bong]# ls -l /etc/systems/system/display-manager.service
lrwxrwxrwx. 1 root root 35 Apr 25 02:35 /etc/systemd/system/display-manager.service -> /usr/lib/systemd/system/gdm.service

However gdm is not active, it loks like there is no DM running, is that possible?

[root@box83 bobg]# systemctl status gdm.service
● gdm.service - GNOME Display Manager
   Loaded: loaded (/usr/lib/systemd/system/gdm.service; enabled; vendor preset: disabled)
   Active: inactive (dead)

As Joe points out it probably had lightdm running before I began making changes trying to fix an intermittent scan problem I can't even describe yet.

This resulted from the replacement of a ViewSonic monitor that did not deal with edid and I think I have cleaned out all the xrandr stuff but perhaps there is some artifact still lurking.

I can systemctl start lightdm or gdm, but what is it running on now, nothing?

--
Bob Goodwin - Zuni, Virginia, USA
http://www.qrz.com/db/W2BOD
box10  FEDORA-28/64bit LINUX XFCE Fastmail POP3
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