I would like to turn my HG20 ON and OFF without having to reach to the power button, unfortunately the remote doesn't do that and neither plugging the power cord turns the camera ON automatically. Does anyone know of any trick to make this happen?
In that case there must be something wrong, your camera model is capable of outputing audio/video thought the HDMI mini connector no problem, plug and play. You need to troubleshoot it, first try to connect the camera directly to a monitor or TV and ...
As far as I am concerned regardless of the camera model that you will be using you will need also a video capture device with a HDMI input to receive the video on your computer, be it an external USB card or internal PCIex card, eg: Mygica Cap X, Ave...