For our dental simulator we use two DELL projectors for generating the 3D image. We turn on the projectors by sending the projectors an IR signal. We would like to verify that turning on the projectors was successful. I notice in the nVidia control panel that there is only one place where the state of the projector (turned on or in standby) can be monitored, and this is namely in the HDCP support check. When I turn off the projector, it immediately shows a red X instead of the yellow lock and when I turn on the projector again, it will become a yellow lock instead of a red X.
Is it correct that I need to query the EDID block coming from the two projectors to figure out if this projector is turned on or in standby? I can’t seem to find the exact location in the buffer where the HDCP support feedback can be monitored.
Any ideas where I can find my answer?