These new ones are a bit more complicated.
After getting a bunch of cables and adapters, I came to same conclusion a few people had. The unit only powers up for 8 seconds and shuts down.
Pictured here below, I was able to get a signal from the HDMI output of my Macbook Pro. Then it shuts off.
Fortunately, I was able to sell mine on craigslist and found a willing buyer very quickly. Good luck to those who want to use the LapDock 100 for their hacking causes.
I'll be getting an original Atrix LapDock.