Originally Posted by istreich
You are a rock star! It worked just fine...
I wasted yesterday 2 hours with an absolutely useless Sony customer support and one hour with a slightly less useless Denon support.
Sony had asked me to return the unit but that itself is a story :-)
It looks like it is a bug on either the Denon AVR or the Sony player. Is there a way to report it to them so that they can address in the next firmware upgrade? I suspect I won't be the last one to have this issue...
The only way I know is to contact service reps at both companies and tell them what worked, asking that they include it in the trouble-ticket's log. If enough people do it, then eventually it'll get to the engineers who are responsible for firmware updates and future designs.
Also, am I "losing" anything changing those settings? I upgraded TV, receiver and Blu Ray to try to leverage recent developments in 4K and HDR. Would be nice not to "downgrade" too much :-)
The BDP settings don't cause any losses, if that's what you mean. Whatever is on the disc is still being sent through to the display, and the display does whatever upscaling is needed to show the image to you.
1) "Original resolution" causes the player to pass through the video signal from the disc (and its internal GUI) without trying to rescale it to whatever "better" resolution it thinks the display device can handle. It could be that the BDP is somehow getting incorrect information about the display's capabilities. Just passing through the original signal is fine since the display is designed to be able to do whatever rescaling is appropriate.
2) No commercial BD includes more than 8 bits per color channel. Rescaling color depth in the player is not necessary and is known to cause problems for some AVRs. If the display actually has 10 or 12 bit hardware, it is designed to rescale the color depth if you configure it to do so.
3) The video signal coming off the disc is 4:2:0. Given that, I've never understood why HDMI requires it to be rescaled to 4:2:2 or higher. Still, displays are designed to rescale whatever color resolution they receive to match the capabilities of their LCD (or OLED) panels.
Each of the settings I suggested minimizes the bitrate sent from the player through the receiver to the display. Minimizing that bitrate helps to minimize the distortions introduced by the HDMI cabling and intermediate circuits. That helps to improve the relative quality of the signal received by the display, which can only help.
In a few cases, the scalers in quality BDPs or AVRs are slightly better than those in early inexpensive display devices, but that's usually not the case with modern TVs. Let the TVs do the work.
Thank you very much again for suggesting those changes. I was losing my mind!!!
You're very welcome. I'm glad to have been able to help. The changes in the settings were all just hopeful guesses on my part. Now I'm guessing that it was the sum of all three that fixed the problem.