A few days ago I had a problem installing a video conferencing system, as I was unable to take the output of the codec display on a TV for some reasons. I was wondering could I have used the VGA port of the laptop as the display input just like that of a TV? If Yes how?
closed as off-topic by AJ Henderson♦, JoshP Nov 14 '13 at 13:51
- This question does not appear to be about video recording and production within the scope defined in the help center.
To expand on AJ Henderson's answer, it would be extremely rare to find combined output/input ports for A/V on a computer, and certainly not combined input/output VGA. This is because the underlying technology to receive and process video is very different to that required to send it and uses high-frequency electronics which tend to be very picky about how they are laid out and connected. As a result adding both send and receive hardware to the same physical port is impractical, bordering on impossible. There are also implications of cost, naturally adding anything to a laptop that's not really needed by the majority of users will drive the price up, and nobody wants that!