I get the following response: "no DP cable" (I have tried both DP ports on the external monitors, one of them results in the message being displayed on the external monitor and the other simply does not do anything).
Monitor with stand for video conferencing Security lock slot (security lock not included); Slot for stand lock for theft protection (on screen) display size 60.5 cm (23.8 ") signal input DisplayPort (digital) HDMI (digital) D-Sub (analog) colour...