Today was the first day of my schools new semester. In my botany class the professor was having difficulty with his overhead presentation.
Not that I am obsequious, but thought I might be able to help jumped up and started to dongle on cables and such not much help either
Here is the setup and symptoms:
A laptop PC video along with USB is wired into a desktop PC. From there, the desktop is wired into the overhead projector. It looked like there was a USB connection, and also a VGA dsub and a video RCA cable.
The symptom was that the video would blink in and out, for a glimpse moment you could see the presentation on the screen, then it would blink out and a message No RGB video. I suspected a bad cable, but could not figure out the video source as there were multiple connections (Standard video and DB9). Anyone know anything in this area?