Timing might needs some work, but that stuff's hard to tell with the choppy motion.
Also it turns out the black video coming from my Logitech webcam (which I was going to use to pencil test) was a result of the BGA sensor chip, which seemed to not be connecting to the rest of the PCB properly. Looks like lots of people have been having the same trouble and are being asked to check their Driver Management and other bollocks. It's a shame 'cause their webcams make a pretty clean image.