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So when i got my macbook 13in, mid 2010 i had it connected to my new samsung tv for about two weeks with no problems using a mini displayPort to hdmi adapter . Then the connection to my tv started to die until recently the picture wont even show up. During this time i haven't updated my computer from OS X Lion 10.7.4. I thought it was my cables so i got new ones and they still don't work. My mac shows thats its connected and i tried all the steps i could find online but my tv is still saying no signal. Any ideas?