It’s for a machine I’m yet to do a mod for. That’s why I’m looking for “this must work”, rather than “this should work”. (I know that with MXM there’s no such thing as “must” until you try it, but at least to be as sure as possible)
Whatever info I found about M2200 suggests Optimus is a must. M2000m was less explored (at least I didn’t found much about it), so I decided to give it a shot as well.
M5000m/GTX 980m do work with LVDS, that’s why I find it strange that the smaller siblings don’t.
EDIT: As for the HP black/whitelist it is hit or miss, 8570w was confirmed working with quite a few GPUs, but most newer ones require DreamColor display to work.