Does Nvidia Shield 2019 Pro truly supports Dolby Vision TV-led?

[Akila]

Does Nvidia Shield truly supports Dolby Vision TV-led (otherwise known as STD-DV, Display-led, Sink Device-led)?

Why am I asking?
Because I have noticed that no matter what DV content I am playing, could be Disney+ , Netflix, Kodi, Just Player, Nova Player, etc.
(I tried all DV profiles. P4, P5, P7, & P8), I always seeing on My TV’s/AVR's (Denon X3800H) input signal information that it is "Dolby Vision YUV 422 12-Bit", which suggests the box (Shield) is doing some sort of Dolby Vision processing, i.e. LLDV/Player-led, and it is not a truly DV passthrough (TV-led), as a true DV TV-led passthrough to my understanding needs to passthrough in RGB 4:4:4 8 Bit tunneling.

When I play the same exact content with the same exact video players (Netflix, Disney+, Kodi, Just player, Nova player, etc.) on my Homatics R 4K plus device (and on my Ugoos AM6B Plus in CoreElec/cpm), I am getting the Dolby Vision RGB 8 Bit tunneling, which suggests it is a true TV-led Dolby Vision passthrough on those devices.
Also it dispels the suspicion of the TV (TCL 75C935) and/or AVR (Denon X3800H) as being the culprit (I am using the same HDMI cables, Ports, etc.).

I also noticed that in the Shield the DV picture is a bit more washed-out then in the Homatics and the Ugoos, suggesting it is a Player-led tone mapping and not a TV tone mapping.

I suspect that the Nvidia Shield 2019 Pro doesn't supports a true TV-led Dolby Vision.

Does Any one of you play DV content With the Nvidia Shield 2019 Pro and seeing in your TV’s/AVR's input signal information that it is playing in RGB 8 Bit tunneling?

NOTE: I don't have Low-Latency Dolby Vision (LLDV/Player-led) Enabled in the Developer mode, so it is not the cause either.

NOTE: I have the latest Firmware on the Shield (I think some ware around May 2025 it was released, 9.2.1 (33.2.0.326), If I am not mistaking).
but it was like this all the time way before, at least 3 years.

 

[Trebdp83]

My Nvidia Shield TV Pro 2019 has had no issue with TV-Led Dolby Vision before or after the latest update.

There was an issue with Dolby Vision and the 24Hz playback feature in the Disney+ app until the latest update resolved it.

 

[Akila]

My Nvidia Shield TV Pro 2019 has had no issue with TV-Led Dolby Vision before or after the latest update.

There was an issue with Dolby Vision and the 24Hz playback feature in the Disney+ app until the latest update resolved it.

When you play DV content on your shield, are you seeing in your TV/AVR the input signal information as YUV 422 12 bit or RGB 8bit?

 

[Trebdp83]

It is RGB 8 Bit.

Here is information from the receiver. Onkyo receivers, like some other components, report 8 bit as 24 bit, 10 Bit as 30 bit and 12 bit as 36 bit.

Here is information concerning the same signal from the LG C1 TV in use.

The Match Frame Rate feature was activated on the Nvidia Shield for playback of “Predator: Killer of Killers” on Disney+.

The LLDV feature in developer settings was not active.

 

[Akila]

so what settings did you set on your shield in order to get the RGB tunneling (TV-led)?
as of now I am only getting YUV 422, which indicates it is Player-led.
I don't have the Match Frame Rate feature activated (the new Beta feature) , could that be the cause?
could you run a quick test and see if you switch it off, if you are still getting RGB tunneling (TV-led) or it reverts to YUV 422 (Player-led)?

 

[Trebdp83]

The Match Frame Rate beta has been around for a while. It has to be activated during playback on supported apps. The Disney+ app had issues with 24Hz playback and Dolby Vision until recently. Dolby Vision RGB 8 bit @60Hz has always worked.

Here again is the receiver signal information.

Here again is the LG C1 TV signal information.

 

[Akila]

when you look at your "Current Display Mode" under the "Custom Display mode"
Do you see the RGB 8-Bit or YUV 422?

This is what I am getting

 

[Trebdp83]

I have the same information for the current display mode, BUT, that is not what is actually output and detected by the receiver or the TV when connected directly to it. With default setting, YCbCr 4:2:0 10 bit is output forcSDR and HDR10. But, enable Dolby Vision, and Dolby Vision signals are output as RGB 8 bit and all SDR and HDR10 signals are output as YCbCr 4:2:2 8 bit. Enable Low Latency Dolby Vision and it also is output as YCbCr 4:2:2 8 bit.