New Post: multiple cameras

Hi all

All works perfectly, but now i want to display several cameras at the same time.
It works when i connect a hp and a logitech together, for instance. I've even successfully tried with 3 different cameras.
But some models can't work together, especially when i connect twice the same model.
The image of the second camera (in starting order) is always black, no update event occurs.

Any idea ?

TIA
Thierry