Originally Posted by rdgrimes
The 3060 MUST be in HDMI Mode-1. Apart from that your issues sound a bit like a cable issue. You should only use "Premium Certified" cables rated for 18Gbps. Many cables claim "4K support" but don't manage 18G. Also be aware that 60Hz cannot be 4:4:4 at 12 bit, it will max out at 4:2:2.
This is odd - Mode 1 mostly results in black / no sync screens and certainly doesn't solve anything (unless I'm missing something). I've now tried it twice. Mode 2 seems to work normally except for the issue I'm describing.
EDIT: I now see in the 3060 manual that you appear to be exactly correct in saying Mode 1 is right - just don't see why nothing seems to work with it set that way. I've turned off the power before trying it after changing modes, FWIW.
I've now determined that even with the behavior I've described, if I pull up the Panasonic UB900's info screen, it shows the HDMI format to be 4K 4:2:2 12 bit (when playing UHD disc).
So I'm now thinking that somehow the 3060 is stripping the info (or at least how the RS500 projector reads it) but not affecting the actual video stream.
So while the UB900 direct to the PJ allows the PJ to show "Deep Color - 12 bit" on the signal info screen, routing HDMI through the 3060 still has Deep Color grayed out with no number beside it, but the UB900 signal info shows it is generating 4K 4:2:2 12 bit.
So unless the 3060 is changing the format (I don't see how, as I've got video processing disabled on it) I guess what is coming out of the UB900 is going into the RS500?
Just odd that others seem to get the RS500 to display input signals accurately - even when using this same AVR.