Is this one of those cRIOs with the embedded UI running RT Linux? I have a cDAQ version and it doesn't run a screen saver. I have it setup without a mouse or keyboard and just displays the status of things and have never seen anything come up before. What does the screen saver look like?
It is running RT Linux, but I have no user interface running on it.
Instead I use RT Debug Write.vi to send text Messages to the text-mode screen.
And the screen saver ist just a black screen.