iPad 2 HDMI Adapter - Max Cable Distance

Question

iPad 2 HDMI Adapter - Max Cable Distance

I work as a A/V Specialist at a local university. Currently we are running the majority of new projectors with HDMI. Since the iPad 2 has come out with its mirroring feature via the HDMI adapter, professors want to be able to plug their iPads into our projectors. The problem I seem to be facing is that if the cable is long (which most of them are longer than 25ft), it doesn't work. It will work on a 2 meter HDMI though. I just don't have a lot of lengths to test with and was wondering if someone knew if there was a max length for the HDMI cable. It makes sense that the iPad most likely doesn't push a lot of power out of the port being a mobile device.

My next question is, has anyone tried some sort of HDMI power injector to get over the distance problem and been successful? If so, I would appreciate knowing what model you used.

Thanks in advance.

Jonathan

Posted on Jun 27, 2011 10:55 AM

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Answer 1

Sep 11, 2011 9:35 PM in response to ciphershort12

Using a generic 10ft HDMI cable for the IPad2 with the HDMI adapter from Apple is working for me (destination is . On occasion it loses the audio. Stopping and starting the video player usually brings the audio back. The audio sometimes works at first and then randomly fails. I suspected imperceptible movement between the stiff HDMI cable, the adapter, and IPad2. Securing the wires to relieve strain relative to the IPad2 appears to have helped, but that means the device cannot be moved around freely. (Why audio would drop instead of high bandwidth video or both signals, I have no idea.)

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