I am trying to start a XServer in order to perform graphical renderings on the cluster GPU with Paraview. Since the cluster is usally driven by a task scheduler, the xserver is usually not running. For visualizations I need to start a Xserver in combination with the Paraview server.

If I try to start the XServer manually with


I recieve the following error message:

Fatal server error:
(EE) PAM authentication failed, cannot start X server.
Perhaps you do not have console ownership?
Please consult the The X.Org Foundation support 
 at http://wiki.x.org
 for help. 

I tried to use xclock from ssh -X and that works. If I try glxinfo then it won't work.

I am logging in from a remote machine via ssh. Any suggestions?


I had the same problem. In my case I solved by changing the file /etc/pam.d/xserver.

Change the line auth required pam_console.so to auth sufficient pam_permit.so

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