Re: [gdm-list] Remote (XDMCP) only gdm config - Fedora 18

[Ray Strode <halfline gmail com>]

Hi,

On Mon, Feb 23, 2015 at 5:47 AM, G Crowe <gcgdmlist crowie net> wrote:
>     I'm still having trouble with this and I google hasn't found anything
> relevant (there are others with the same issue, but no published solutions).
>
> Can someone please point me in the right direction to get GDM to accept
> XDMCP connections without running anything on the local display (essentially
> on a headless machine)?

GDM didn't gain the ability to do that until gnome 3.10 :

https://bugzilla.gnome.org/show_bug.cgi?id=567522

And it actually had a critical bug in that prevented the feature from
working until last month:

https://bugzilla.gnome.org/show_bug.cgi?id=743440

So you won't be able to do what you want to do via GDM without
updating.  Another option,
might be to configure the local X server (via xorg.conf) to use the
"dummy" video driver.
This way, when the X server is started it won't actually take control
of your hardware.

--Ray