Around the same time as the mamelet, I was faced with a dilemma. The upstairs portion of the store, which housed all the used crap people gave us, was filling up with plain old vga monitors. Every day, I would show up to work and there would be 10-15 new crts sitting on the floor where I'm normally working, which was no good. You have to understand, my old workplace was locally famous for being a bastion of old computer crap having slowly collected over the years. One night, we (my coffee-serving coworker and I) locked ourselves in overnight, and managed to construct a video wall using 16 crappy old 15" crts set up on a shelf. Each cluster of 4 monitors was connected to its own slackware node, the fastest of which became the master, and we even had a cisco router serving the alpha node's dhcp, giving us our own video-wall subnet. The best part was, every single piece of software to make this happen, amazingly enough, came by default on the slackware disk. Xdmx was used to multiplex the four, four-by-four displays into one mondo-tron, which made a very nice screen for south park episodes played over nfs via mplayer.
It was pretty funny to see peoples' reactions when they would see a little xorg cursor on one monitor zoom nine feet across the wall to the other end using a little hidden sgi mouse I had behind the display counter. It was awe-inspiring to stand in front of the monitors as they were turned on. You could literally feel your clothing being sucked into the charged glass. Each set of four monitors was plugged into its own power bar, which was then extension-corded over to a different corner of the store to avoid tripping any circuit-breakers.
zappa@slacky.it - 2008-01-30 09:05:53
Hi, i want to know how to make a video wall with 4 monitors led and 1 desktop pc with 2 video cards... Sorry for my english... bye