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I'm trying to make one giant display screen out of 20 Hanns G monitors. Ideally they would be run from one mac that would change based on who is presenting that day (i.e. plug and play system). I have no knowledge of video/cables/computer configuration so I'm looking for a very spelled out answer. I found an application for mac called ArraySync which I will probably end up using for the video output. I've seen the words "splitter" and "adapter" but don't know exactly what I need for so many monitors. Currently have an AVG to AVG cable for all monitors... nothing else.

Thank you in advance for your help!!

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What is an AVG cable? – Synetech Jul 13 '12 at 19:24
Multiple copies of the same image or one combined image spanning all monitors as if they were one giant monitor? – Dennis Williamson Jul 14 '12 at 0:09
@Synetech: I'm assuming it's a VGA cable that scrambles the signals. ;-) – Dennis Williamson Jul 14 '12 at 0:10
@DennisWilliamson, that’s what I assumed, but since I don’t use Mac, I figured there may be some sort of Mac-specific thing (though Googling seems to indicate probably not). – Synetech Jul 14 '12 at 0:50

Most likely what you will need is a video wall controller device such as one by Avenview, Cinemassive, or the Aventura XPanse. Even with the use of a number of splitter devices, it is unlikely that the Mac by itself is capable of being set up to control such a large array of monitors by itself.

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Cinemassive is a shady company and I'd stay away from them. – Shinrai Jul 13 '12 at 20:46

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