I need a custom driver based on the ones provided by Blackmagic Design for Linux so that we can use the SDI out on the DeckLink SDI card as a second monitor displaying the desktop or a second instance of X. They must work on Ubuntu 12.04.
You can find the current and older drivers here: http://blackmagic-design.com/support/detail/?os=linux&sid=3945&pid=4013&leg=true
Several years ago, they included an extended desktop feature, but removed it. They will no longer provide those old drivers to me.