Symptom: The Projectors are Black, but crestron shows them as on
First, before trying anything with the projectors themselves, try restarting the Render Node. Sometimes, one or two screens will appear properly, but the other projectors appear to not show an image. The only clue that the projectors were fine was that a mouse icon appeared on a black screen.
After that, then begin trying troubleshooing projectors, such as power-cyclin them.
Other:
The projectors will refuse to start if the synchronization settings in windows are not correct for all of the projectors.
On the render node: Open the Nvidia driver, check these settings:
