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I have no picture when running about 25' of HDMI from my AVR to my projector. But when i circumvent the AVR and go direct from my Roku to the projector, using the same cable, it works. I then tested the ports of the AVR by attaching different cable to my flat screen. This also gave me picture. I don't think it's the ports. Any ideas as to what might be the issue? Is it possible that my Roku sends out a stronger signal than my Denon AVR 1912? Projector is Optoma HD161x. Thank you in advance.
 

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I have no picture when running about 25' of HDMI from my AVR to my projector. But when i circumvent the AVR and go direct from my Roku to the projector, using the same cable, it works. I then tested the ports of the AVR by attaching different cable to my flat screen. This also gave me picture. I don't think it's the ports. Any ideas as to what might be the issue? Is it possible that my Roku sends out a stronger signal than my Denon AVR 1912? Projector is Optoma HD161x. Thank you in advance.
Yes, it is likely that the AVR's signal is not as strong.

You might want to consider replacing your cable (which I assume is passive) with an active cable. I.e. one which includes circuitry designed to clean-up and amplify marginal HDMI signals. Redmere cables from Monoprice are quite popular and relatively inexpensive.

External devices which can cleanup HDMI signals also are available. E.g. http://www.monoprice.com/Product?c_id=104&cp_id=10419&cs_id=1041914&p_id=2849&seq=1&format=2
 

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Using an Extender which pulls power from the Source is best avoided - esp. when the Source (the AVR) looks like it is already struggling with its Output Voltage.


An externally powered Extender is the way to go - http://www.octavainc.com/HDMI%20extender.htm


Optoma projectors can be pretty pernickety about signal levels.


Joe
 
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