Trying to plug in an hdmi tv to macbook pro rentina and it keeps trying to adjust and just flashes., Trying to plug in an hdmi tv to macbook pro rentina and it keeps trying to adjust and just flashes.

Trying to plug in an hdmi tv to macbook pro rentina and it keeps trying to adjust and just flashes., Trying to plug in an hdmi tv to macbook pro rentina and it keeps trying to adjust sizing and just flashes and never stops.
Any help?

First than all, check your video input (TV Video), check in all possible channels, and make sure the HDMI is plugged in correctly. If you did plug it in correctly, and checked all possible channels of Video Input, and it doesn't appear, you should try rebooting your MacBook Pro (with the HDMI disconnected), after it's back on, try plugging it in back again. If the problem persists, I recommend you to go to a Certified Apple Store, and have them check it.
Hope this helps!
Later.

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