I have a couple of systems
- Running Suse Linux 11.4 & XDM Display manager .
- Red Hat Linux & Gnome
in both these systems when I log in as
root user I am able to execute any X application like xterm , xclock etc .
However the trouble is when I login as a non root user I get the following error
No protocol specified
Error: Can't open display: :0
I see the following error in the logs
- No messges in /var/log/Xorg.0.log in case of Suse Linux
- The following error message in /var/log/Xorg.0.log in Red Hat
AUDIT: Thu Nov 10 16:02:06 2011: 8659 Xorg: client 35 rejected from local host
I tried googling the error but couldn't find anything to help me.
This post describes the problem but did not fix my issue .
The surprise is that on my friends machine things work perfectly even for a non root user.
I suspect that there is a setting issue on my system. Is there some configuration that needs to be done to allow the non root users to execute X applications on a xdm system?