tv won't recognize hdmi from macbook pro, but will from ipad

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tv won't recognize hdmi from macbook pro, but will from ipad

I have a new Toshiba TV (40L5200U) that will recognize HDMI input from an IPad, but not from a MacBook Pro (running 10.6.8). I'm connecting through a Rocketfish Mini DisplayPort to HDMI Adapter (RF-AP305), but the TV says "no video signal." Display Preferences shows 1024x768, which the TV user guide lists as an acceptable input (XGA), but when I detect displays the computer doesn't recognize the TV. I can't see an Arrangements tab. The computer does give output through this port to a VGA adapter for a projector. Any suggestions? Thanks.

MacBook Pro, Mac OS X (10.6.8)

Posted on Apr 7, 2012 8:53 AM

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Answer 1

Apr 7, 2012 9:29 AM in response to royfrommd

It is vital to push the Mini DisplayPort adapter into the Mac socket until essentially ALL of the metal is inside the socket.

Use About This Mac > ( More Info ) > Displays to examine the NAME of the display attached. Until you get the make&model popping up there, you have not made a solid connection.

"Supported resolutions" for many displays are not supported in the same way on each of the available ports. 1024x768 mat be an excellent VGA resolution that does not work at all across HDMI. Be certain [√] Mirroring is turned OFF to allow the displays to be set independently.

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Answer 2

royfrommd Author

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Apr 7, 2012 10:18 AM in response to Grant Bennet-Alder

Thanks--I suspect the problem is the Rocketfish adapter--I've jiggled it around but the Profiler/Display still shows no connection. Back to Best Buy for an alternative, I suppose.

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