Yesterday I saw a 3 by 3 video wall display, in which the only connection between the LED TVs are by HDMI cable from one i7 notebook.
I asked the operator how he did it, and his answer sounded to me kind of tricky and misleading. He connects the notebook to the #1 LED TV in the 'input' HDMI (or something like that). Then, from the 'output' HDMI in that TV, he connects to the #2 input HDMI, and from it to the 3rd and so on... all in series and with HDMI cables.
All of them work with the i7 notebook with one and only HDMI cable plugged in it (connected to the 1st TV) and with some software I can't recognize at first view. He says there's no need to use anything else.
I saw it working. Is it really possible, or has he somehow tricked me?
And if it is possible, why is something like the 'iVu4 stand alone video wall controller' and others like it needed anymore?
Anyone knows anything about this?