Macbook pro13.rocketfish.mdp.to.hdmi

My problem:
mbp13 does not detect lcd tv
I'm using the hdmi cable from the hddvr, works
macbook pro 13in late 2011
rocketfish mdp to hdmi adapter
hdmi cable brand unknown
samsung lcd tv 52in

"Open System Preferences > Displays, hold Option key and press Detect Displays to detect your TV"
Tried it still nothing
Tried using several lcd tvs
MacBook Pro 13 late 2011 MD313LL/A
Mountain Lion 10.8.2
Macbook Air 13 MD231LL/A
Mountain Lion 10.8.2
Philips 42in lcd tv
Samsung 52in lcd tv
Samsung 32in lcd tv
No signal on any of the tvs,
tried all the HDMI ports on all the tvs
mbp13 does not detect any of the tvs
mb air13 does not detect any of the tvs
Gone to >system preferences>displays pressed option for the "Detect Displays" button to appear still does not detect any of the tvs

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