EVO 3D to tv via MHL adaptor

view story

http://androidforums.com – I am having trouble using the adaptor to watch Netflix via my EVO 3D. I connect the HDMI to the tv, selct HDMI input on the tv, then connect to the adaptor then to the phone. When I begin the movie I never seem to get the option in notifications to select HDMI. It worked once but I had tried so many sequences I can't recall the exact order. What is the trick to getting this to connect on a regular basis? I don't need a power source going into the adaptor do I? (General)