I have an elitebook 735 g5 with an hdmi and no displayport. It is plugged into a hp ultraslim docking station 2013 which has has 2 displayport and no hdmi. One monitor is old and connects via VGA to docking station. The second has displayport and isn't recognised. Am I right in thinking if the laptop has no displayport then the two displayport ports on docking station won't work? Is there any adapter that might work here ?