Not getting Dolby Vision 10bit

[eyekyu]

Not sure if this is the correct sub forum...

Via my UBP-800M2 I'm getting Dolby Vision @10bit. When I select in on my Marantz I'm only getting 8 bit?

Maybe something in my setup is wrong? Any tips or suggestions, added picture for any confusion.
Thanks

[Geoff D]

Originally Posted by eyekyu

Not sure if this is the correct sub forum...

Via my UBP-800M2 I'm getting Dolby Vision @10bit. When I select in on my Marantz I'm only getting 8 bit?

Maybe something in my setup is wrong? Any tips or suggestions, added picture for any confusion.
Thanks

Why have you got the output set to RGB?

[eyekyu]

Originally Posted by Geoff D

Why have you got the output set to RGB?

interesting? as far as I know thats a default setting?

[Geoff D]

No, it should be YCbCr.

[eyekyu]

Originally Posted by Geoff D

No, it should be YCbCr.

TV wont let me edit that setting in Dolby Vision
I cant find a similar setting in my AVR

[Geoff D]

Originally Posted by eyekyu

TV wont let me edit that setting in Dolby Vision
I cant find a similar setting in my AVR

The TV doesn't control it, the player does.

[PUsokrJosh305]

Yeah, what Geoff said. You need to go into the player's settings. Choose screen settings and then switch it to Auto (YCbCr/RGB). That should solve the issue.

[eyekyu]

Originally Posted by Geoff D

The TV doesn't control it, the player does.

not sure i understand, the 800m2 shows its being played 4:2:0 10bit. the marantz is saying it only RGB 8bit. when I turn the hdmi off dolby vision and only display HDR10 its switches to YCbCr and 12but. maybe its a TV setting?

[PUsokrJosh305]

Originally Posted by eyekyu

not sure i understand, the 800m2 shows its being played 4:2:0 10bit. the marantz is saying it only RGB 8bit. when I turn the hdmi off dolby vision and only display HDR10 its switches to YCbCr and 12but. maybe its a TV setting?

I think you are getting confused. Your player is saying that the content (your movie) is a 4:2:0/10 bit movie. But what the player is doing is outputting/converting that into RGB 8 bit. Hence why the Marantz is saying RGB 8 bit as well. So, what you need to do is go into the player and change it from RGB to Auto.

[eyekyu]

Originally Posted by PUsokrJosh305

I think you are getting confused. Your player is saying that the content (your movie) is a 4:2:0/10 bit movie. But what the player is doing is outputting/converting that into RGB 8 bit. Hence why the Marantz is saying RGB 8 bit as well. So, what you need to do is go into the player and change it from RGB to Auto.

yes color is set to auto & when i force YCbCr 422, the marantz still say RGB lmfao

[eyekyu]

did more digging, must be a weird Marantz cork

Don't know if Denon/Marantz are just incorrectly reporting the info or if what is described below holds true for UHD discs. As noted at the end AVRs can report DV as either 8 bit RGB or YCbCr 4:2:2 12 bits. Both are stated to be correct

Dolby Vision RGB Tunneling

The method Dolby Vision (DV) uses to transport the signal over HDMI is referred to as “RGB Tunneling”. The 12-bit ICtCp DV signal + Metadata is encapsulated inside the regular RGB 8-bit video signal. The DV “tunneling” carries 12-bit YCbCr 4:2:2 data in an RGB 4:4:4 8-bit transport. This is possible because both signal formats have the same 8.9 Gbps data rate requirements.
https://www.dolby.com/us/en/technolo...hite-paper.pdf

DV requires dynamic luminance data which cannot be explicitly carried in an HDMI 2.0 (18 Gbps max) data stream, so it is designed to transport over HDMI 1.4 (8.9 Gbps max); at least up to 4K@30. DV base content and DV luminance (meta) data is encapsulated in an HDMI 1.4 compatible (except HDCP 2.2) RGB 4:4:4 8-bit video stream. That's why Dolby claims that DV can be sent via HDMI v 1.4, but in reality, HDMI v2.0 is needed due to the HDCP v2.2 encryption.

The DV metadata is encoded into the least significant bits of the chroma channels. Upon the HDMI EDID exchange (handshake), the sink (AVR, Display, or HDMI switch) signals the source that it supports Dolby Vision "tunneling". The source then signals the sink that it's transmitting Dolby Vision through an AVI Infoframe, which therefore triggers the Dolby Vision mode in the sink. The display DV engine extracts the components and produces a tone mapped image.

As a result, video pass-through components must be DV 'aware' to not alter the signal, which is in effect 'hidden' inside the 8 bit RGB 'container'.

AVR’s may report DV signals in one of two ways, but both are correct:
Resolution: 4k:24Hz ->4k:24Hz
HDR: Dolby Vision
Color Space: RGB 4:4:4 -> RGB 4:4:4 -OR- YCbCr 4:2:2 -> YCbCr 4:2:2
Color Depth: 8 bits -> 8 bits -OR- 12 bits -> 12 bits

https://www.avforums.com/threads/lg-...#post-26994876

[BijouMan]

Originally Posted by eyekyu

Not sure if this is the correct sub forum...

Via my UBP-800M2 I'm getting Dolby Vision @10bit. When I select in on my Marantz I'm only getting 8 bit?

Maybe something in my setup is wrong? Any tips or suggestions, added picture for any confusion.
Thanks

For best results, it is recommended that you connect your player directly to both your display and your sound device. That way, your sound device won't potentially do anything to the video signal, even if it can "pass through" 4K video encoded in HDR10+ and/or Dolby Vision. While an HDMI 2.0 or later cable is required for connection to your display, your sound device can be connected with one of your existing HDMI 1.3 or later cables. Make sure your player is set to bitstream and that secondary audio is disabled.

[Ssj3 Goku]

I would like to add to this forum and if anyone can help with me that be great. I also appear to be having this dilemma or if I should really call it that with my Dolby vision signal showing as rgb 8 bit. My equipment is the x800m2, the x4700h Denon and the Sony A80j oled. Before the oled which I just got a couple days ago my tv was an led Sony x950g from 2019. The A80j was the culprit that made the changes as my signal came in from the 4:2:2 ycbcbr 12 bit on the x950g to the rgb 8 bit on the A80j Sony. Not even changing the setting to ycbcbr 4:2:2 changed anything. My question is first can this be changed by any other means and is the rgb 8 bit signal showing from the x4700h normal?

[Geoff D]

Yes, it’s normal.

When you were using your previous TV you were receiving ‘player led’ Dolby Vision, i.e. the player was doing the processing and tone mapping of the DV signal and feeding it to the TV as a fully decoded 12-bit 4:2:2 output.

With your new TV you appear to be receiving ‘TV-led’ Dolby Vision, i.e. the TV is doing the tone mapping and this version is sent as 8-bit 4:4:4 from player to display. 8-bit 4:4:4 takes up the same amount of bandwidth as 12-bit 4:2:2, believe it or not, so you’re not actually receiving 8-bit content, it’s just the 12-bit version packaged into a different “container”.

[Ssj3 Goku]

Originally Posted by Geoff D

Yes, it’s normal.

When you were using your previous TV you were receiving ‘player led’ Dolby Vision, i.e. the player was doing the processing and tone mapping of the DV signal and feeding it to the TV as a fully decoded 12-bit 4:2:2 output.

With your new TV you appear to be receiving ‘TV-led’ Dolby Vision, i.e. the TV is doing the tone mapping and this version is sent as 8-bit 4:4:4 from player to display. 8-bit 4:4:4 takes up the same amount of bandwidth as 12-bit 4:2:2, believe it or not, so you’re not actually receiving 8-bit content, it’s just the 12-bit version packaged into a different “container”.

Ohhh ok then thank you so much Geoff D; you explained it perfectly. I was a little worried that it was my A80j or that maybe it was the receiver causing the "issue". Just initially looking at the receivers info made me concern that I was just getting 8 bit content from dolby vision. So basically the info showing Dolby vision as rgb 8 bit is perfectly normal and that's how it's suppose to show cause the tv is doing the mapping and processing instead of the player.

[Geoff D]

Don't thank me, I had no idea about it until that excellent post from avs was quoted above.