Ask HN: Hacking a video wall.

Hi,

I'm working on a project to convert the use of a 9-screen video wall into an information point. We have a spare one at the school I teach in and I've commandeered it for my own propaganda :)

I plan to use 9 raspberry pis (which I already have laying around), one to run each of the 9 screens in the array.

Initially I was thinking of using Synergy to share the keyboard and mouse of a control laptop in order to configure the screens and change the content as required, but it seemed inelegant and I wondered if anyone had any experience with doing something similar - it strikes me as the sort of thing that might have some development done already but I didn't know where to start.

I'd like to be able to do different thing with them over time - show different mixtures of slideshows, webpages, videos and other applications. Eventually, I'd like to include some cool interactive things using cameras and maybe a kinect or something.