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CHAPTER 8: TROUBLESHOOTING
If a connection is not possible with the Video Wall Manager application, you will need to look at the application event viewer on the
Video Wall Manager Server.
8.1.4 THE ENDPOINT IS A DUPLICATE
This error message suggests that an attempt to open a communication port failed because it is already in use.
If the Video Wall Manager server has not been activated or the networking has been disabled in the Video Wall Manager Administra-
tor dialog or Video Wall Manager has not been activated, the problem is with the port name.
If networking is enabled, the problem could be with either the port number or the port name.
You can find out the port number and the port name that the server application is using through the Server Application Manager
dialog or the application event viewer.
You can find out which port numbers are in use on a machine with the netstat command. There is no way to find out which port
names are in use.
Use Video Wall Manager | Configure Menu | Server Application Manager to change the port number and/or port name and restart the
server application.
8.1.5 THE REMOTE PROCEDURE CALL FAILED AND DID NOT EXECUTE
This is displayed when trying to contact a server application that has been stopped after it had been connected to successfully. Go to
the Server Application Manager dialog and start the server application again.
8.1.6 CHANGING SCREEN RESOLUTION
Before making any changes to the resolution, we recommend that you stop the Video Capture Cards server beforehand. This can be
done using Video Wall Manager | Configure Menu | Server Application Manager.
The servers retain resources on the graphics card, which may not be available if the resolution is changed.
8.1.7 HOW DO I CONNECT A REMOTE COMMAND CONTROLLER VIA RS-232 OR IP TELNET?
Support for RS-232 and IP remote control of machines is provided through our Video Wall Manager software. This package includes
a “remote command line interface” that can be used to select and configure the required method of control. This can be accessed un-
der the ‘“Configure->Remote Command Line” menu option while Video Wall Manager is connected to the server. Once configured, the
Video Wall Manager program does not need to remain open and the system will process remote commands until the configuration is
changed.
To use the remote command line, you must first select the required method of control via the “Active Server” drop-down list in the “re-
mote command line” dialog. This allows you to select between ‘“Com Port Command Line Interface” (RS-232) and “Telnet Command
Line Interface” (IP network based control). Once a server has been selected, its settings can be configured by pressing the “Settings”
button and it must also be enabled via the “Enabled” checkbox; the server specific settings include options such as ports and trans-
mission speed. Once the selected server has been activated, then the “Status” on the “Remote Command Line” dialog should change
to “Connected.” At this point the software should be ready to receive remote commands and the Video Wall Manager software can
then be closed.
