Did you manage to get vtd working? I am thinking of buying 4010u for vmware to do vtd for vm to have graphics and hdmi sound.
I am sorry to hear that have had issues with VT-d support.
I would need more information in regards to your system configuration: I need the NUC model number, AA number and Serial number
I was asking the user Olof if he has fixed his vtd issue. I have not bought 4010u NUC. I am going to buy only after confirming I can passthrough HDMI video and audio of the built-in to VM guess using ESX5.1 as the CPU is advertised as VTD capable.