Hi , I have the same problem: I get the lite My WiFi Dashboard version.
My system satisfies all the requirements in Intel� Wireless Display (Intel� WiDi) — System requirements for Intel� WiDi
however the only option that shows is the Do not disturb... My adapter is the Intel Centrino Advanced-N 6205 running on Windows 8 PRO.
I will appreciate your prompt response to this matter.