Xwindow: Unable To Connect To Display In CR 6.8

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Hello everyone,

I just installed the CentOS 6.8 updates from the CR repository, and then I rebooted the server. I run some software to make weather images on a website, and I have run into a problem. When I do it, the software, as it tries to plot the image, says:

Xwindow: unable to connect to display

It just stopped working when I did the updates. Has anyone else seen this, or have an idea on what to look for to get this fixed? To plot it, I
use syntax’s of

machine:0
machine:1
machine:2

Which lets me plot it using virtual frame buffers (Xvfb). When I do xhost
+ servername , it says it has been added to the control list…but it still doesn’t fix the issue. Does anyone know what I may be doing wrong?

Gilbert

*******************************************************************************
Gilbert Sebenste ********
(My opinions only!) ******
*******************************************************************************

2 thoughts on - Xwindow: Unable To Connect To Display In CR 6.8

  • Also, doing an “xhost +” does not help, either, and in
    /etc/gdm/custom.conf, I have:

    DisallowTCP

  • I tried reverting to the previous version of x11-Xvfb-server in CentOS
    6.7, and that did not help at all. I am wondering if something is up with GDM or the X11 server, but port 6000 isn’t even showing up now as active.

    Anyone?

    Gilbert

    *******************************************************************************
    Gilbert Sebenste ********
    (My opinions only!) ******
    *******************************************************************************