7019030: Remote access issue with xdmcp and Gnome.

This document (7019030) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 2 (SLES 12 SP2)

SUSE Linux Enterprise Server 12 Service Pack 1 (SLES 12 SP1)

SUSE Linux Enterprise Server 11 Service Pack 4 (SLES 11 SP4)

SUSE Linux Enterprise Server 11 Service Pack 3 (SLES 11 SP3)


After trying to connect to a SLES server running Gnome desktop via xdmcp protocol, this may not work with some clients, and not with others.

Works with: Xephyr, VcXsrv ( working Windows X server implementation with OpenGL acceleration )

Does not work with: Xming


Switch to client that works.


Use Display Manager and Window Manager that do not require 3D acceleration

For example xdm and icewm.

It is possible to do this by :

  • editing /etc/sysconfig/displaymanager to show :


  • editing /etc/sysconfig/windowmanager to show :


  • and switching to runlevel 3 and back to 5 or by rebooting teh system.

After that just make sure to configure xdm to enable xdmcp


Certain xmdcp clients do not support the necessary extensions for acceleration.

As such, gdm and gnome-shell do not work with it.


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