Why don't I have a video when connecting my Note 2 to tv w/ 5 to 11 mhl 2.0 to hdmi adapter cable w/ usb power?

[AC Question]

no video when connecting note 2 to tv w/ 5 to 11 mhl 2.0 to hdmi adapter cable w/ usb power

i've connected 2 different 5 to 11 pin mhl 2.0 to hdmi adapter cables to my note 2 one has micro usb power the other has 2.0 usb power and i'm not receiving video on my tv from either