Nvidia hdmi handshake problem

I have a gtx 650 ti with driver version 7.5.760.0

running win 8.1.

My problem is i have an atrix 4G lapdock  and my nvidia card won't detect it.

using the same hdmi cable if i plug in into my raspberry pi it works just fine.


Note: the lapdock does power up after plugging in the hdmi but isn't recognised.