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

[G Crowe <gcgdmlist crowie net>]

Hi,
    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)?


Thank you

G Crowe



On 27/10/2013 9:28 AM, G Crowe wrote:
> I have a server (a virtual machine, to be precise) that I need to 
> connect to via XDMCP. I don't want to have it start a local session on 
> the console (I don't believe that the console would even support it).
>
> I have copied a following config file (see below) from a CentOS 5.2 
> box which works as expected.
>
> It appears to still be trying to start local X-Servers and failing, 
> and I get errors in the logs when trying to connect via XDMCP (and no 
> successful connection).
>
> Can someone please assist with my config file, or a pointer to some 
> relevant (and recent) documentation.
>
>
> Thank you
>
> G Crowe
>
>
> Config file I am using.
>
> **********************************
> [root dhcp7 ~]# cat /etc/gdm/custom.conf
> # GDM configuration storage
>
> [daemon]
>
> [security]
> AllowRemoteRoot=true
> DisallowTCP=false
>
> [xdmcp]
> Enable=true
>
> [greeter]
>
> [chooser]
>
> [debug]
>
> [servers]
> 0=inactive
> **********************************
>
> I get the following errors in /var/log/gdm/:0-slave.log
>
> **********************************
> [root dhcp7 ~]# cat /var/log/gdm/\:0-slave.log
> gdm-simple-slave[1210]: WARNING: Could not start command 
> '/usr/bin/Xorg -background none -verbose': Failed to execute child 
> process "/usr/bin/Xorg" (No such file or directory)
> gdm-simple-slave[1210]: WARNING: Could not start the X server (your 
> graphical environment) due to an internal error. Please contact your 
> system administrator or check your syslog to diagnose. In the meantime 
> this display will be disabled.  Please restart GDM when the problem is 
> corrected.
> **********************************
>
>
> I get the following error in /var/log/messages
>
> **********************************
> Oct 26 21:20:13 dhcp7 dbus-daemon[355]: dbus[355]: [system] Rejected 
> send message, 1 matched rules; type="method_call", sender=":1.52" 
> (uid=0 pid=1189 comm="/usr/sbin/gdm-binary ") 
> interface="org.freedesktop.DBus.Properties" member="GetAll" error 
> name="(unset)" requested_reply="0" destination=":1.114" (uid=0 
> pid=1547 comm="/usr/libexec/gdm-simple-slave --display-id /org/gn")
> Oct 26 21:20:13 dhcp7 dbus[355]: [system] Rejected send message, 1 
> matched rules; type="method_call", sender=":1.52" (uid=0 pid=1189 
> comm="/usr/sbin/gdm-binary ") 
> interface="org.freedesktop.DBus.Properties" member="GetAll" error 
> name="(unset)" requested_reply="0" destination=":1.114" (uid=0 
> pid=1547 comm="/usr/libexec/gdm-simple-slave --display-id /org/gn")
> Oct 26 21:20:13 dhcp7 systemd-logind[353]: Removed session 25.
> Oct 26 21:20:14 dhcp7 systemd-logind[353]: New session 27 of user gdm.
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: GLib-CRITICAL: 
> g_sequence_get: assertion `!is_end (iter)' failed
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: CRITICAL: 
> gdm_session_set_environment_variable: assertion `value != NULL' failed
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: GLib-CRITICAL: 
> g_sequence_get: assertion `!is_end (iter)' failed
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: CRITICAL: 
> gdm_session_set_environment_variable: assertion `value != NULL' failed
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: GLib-GObject-CRITICAL: 
> g_object_ref: assertion `object->ref_count > 0' failed
> Oct 26 21:20:14 dhcp7 gdm-simple-slave[1547]: GLib-GObject-CRITICAL: 
> g_object_unref: assertion `object->ref_count > 0' failed
> Oct 26 21:20:14 dhcp7 gdm[1189]: gdm-binary[1189]: WARNING: 
> GdmDisplay: display lasted 0.964862 seconds
> Oct 26 21:20:14 dhcp7 gdm-binary[1189]: WARNING: GdmDisplay: display 
> lasted 0.964862 seconds
> **********************************
>
>
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