Installing X Server

X Server should be running, if you plan to upload images for any records maintained using TIBCO MDM. TIBCO MDM uses the X server's rendering buffer to resize an image when it is uploaded. The DISPLAY environment variable is used in conjunction with the X server.

X Server

One popular X server is RealVNC (http://www.realvnc.com/). Some UNIX distributions come with a bundled X server or with the VNC X server pre-installed.

For example, to start VNC on a machine running Linux,

1. Run the following VNC server command: [vsadmin@hqstage01 vsadmin]$ vncserver
   A message is displayed to create a password, which is required to access your desktop.
2. Type the password.
   The following message is displayed: New 'X' desktop is hqstage01.tibco.com:1
3. Set the DISPLAY environment variable as follows: export DISPLAY=hqstage01.tibco.com:1.0
   If image upload does not work even though the VNC Server is running, add the following property in the generic JVM arguments:
-Djava.awt.headless=true.

   • Default startup script is available in: /home/vsadmin/.vnc/xstartup
   • Starting applications specified in: /home/vsadmin/.vnc/xstartup
   • Log file is located in: /home/vsadmin/.vnc/hqstage01.tibco.com:1.log