Anyway it came with openelec on the memory card so to test it I connected it up to my to my lapdock and getto usb cable.
Kodi loaded but it would only give 720x576p resolution.
Turns out any none standard resolutions given over edid are ignored by the kernel and it defaults to 576p.
I did some investigation on the solidrun forums and came across this post which has some manual timings for the lapdock.
I've added the below command to /storage/.config/autostart.sh which sorts everything out before kodi boots
fbset -g 1280 720 1280 720 16 -t 13468 140 210 10 10 20 10