crossposting from HDMI forum incase it is a projector related problem rather than HDMI.
Have an Optoma HD806, an Onkyo SR307 and sony blu ray devices. I run HDMI from the device to the receiver and then a 26 foot HDMI to the projector.
Everything has run fine in the past, then I had a toothing issue one night. I shut everything down, then unplugged the projector to reset it (a rare but known fix on this model of Optoma). When I plugged everything back in, the projector cannot recognize the HDMI input and I just get a blue screen (default on projector).
I have swapped out all cables, reset all components etc. When the blu ray is connected to the receiver with no HDMI to the projector, the receiver is receiving full HDMI, but when the projector is reconnected it disrupts the HDMI between the receiver and blu ray as well as carries no signal to the projector.
I have also swapped out the projector w/ another 1080p display and all works well fine Any thoughts?