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djsolidsnake86 · Today, 11:13 AM

(Today 12:09 AM)MUC Wrote:
(Yesterday 09:36 PM)djsolidsnake86 Wrote: but when i open a dv video on mpc hc with mpc video renderer and the option set to prefer dv over pq the monitor go always in hdr mode

That's what I meant.

Windows and any other PC operating system cannot output a Dolby Vision signal, as is common with Ultra HD Blu-ray players or streaming boxes.

The MPC Video Renderer can extract some of the Dolby Vision information from files to make the most of what can be output via an HDR10 layer. This is also documented on GitHub: https://github.com/clsid2/mpc-hc/issues/2869

Quote:DV is converted into HDR or tonemapped to SDR (depending on your settings).
It does not support outputting DV directly to your screen.

Dolby Vision is a proprietary technology that is not publicly documented. Therefore, if a graphics driver were to output a genuine Dolby Vision signal without a license and Digital Rights Management (DRM), it would be a violation of Dolby's terms and conditions and would be subject to legal action. The necessary protected video path for Dolby Vision is only available on Android and proprietary operating systems (Apple TV, Xbox firmware). Microsoft's DirectX architecture does not meet these protection requirements.

HDR certification = Dolby Vision on Windows initially only tells the operating system to use the information from the Dolby VSVDB for tone mapping (color primaries and luminance values). Microsoft's "Dolby Vision Extensions" presumably allow the Microsoft Edge browser and the Microsoft "Movies & TV" app to access non-visible Microsoft components within DirectShow. The exact outcome is unknown. However, it certainly doesn't match the Dolby Vision signals of a true Ultra HD Blu-ray player.

Unfortunately, I don't even know the difference between these two:
https://apps.microsoft.com/detail/9pltg1...n-us&gl=US
https://apps.microsoft.com/detail/9mvmz9...n-us&gl=US

I know your LG TV displays the Dolby Vision logo. However, a detailed analysis of the signal would reveal that essential information is missing. Please see for yourself. There is an HDMI Diagnostics mode on LG TVs you can access yourself:

Open the settings of the TV by pressing on the gear icon on the remote.

Highlight or move the pointer over the All Settings option and open all settings.

General > Programmes

Move the pointer or highlight Programme Tuning & Settings, don't klick it.

Press the „1“ key on the remote five times quickly.

Select "More" at the very bottom right.

A diagnostic screen titled "HDMI Diagnostics" appears. In the upper left corner, under "General", it says "HDR Type: DolbyLL." This stands for Low Latency Dolby Vision (LLDV). LLDV means that the source device (the graphics card) performs tone mapping. The LLDV output curve largely corresponds to the HDR10 curve. This is called Perceptual Quantizer (PQ). Therefore, these two modes (LLDV<>HDR10) are difficult for human perception to distinguish.

However, true Dolby Vision would require a Vendor Specific Info Frame (VSIF) to be included in the signal sent by the graphics card. You can see this on the diagnostic screen in the middle on the right, where all values are 0, even when playing a generic Dolby Vision demo. If you had an AV receiver between the graphics card and the TV, the receiver would show you HDR10 in its signal diagnostics, but not Dolby Vision.

We don't know exactly what Microsoft is doing with Dolby Vision here. It might offer some benefits for games and apps explicitly created and advertised for this „PC Dolby Vision interface“, but it doesn't correspond to what we know as Dolby Vision movies.

@ToastyX: Regarding CRU, it would be useful to make the Dolby VSVDB editable, at least for the interface definition. I think the information in my post above should be sufficient for that.

Drop-down list for the interface?
Two Option buttons for the bit depth (either 10 OR 12 bits) with check-box to activate?

(Yesterday 09:36 PM)djsolidsnake86 Wrote: panasonic 65lz1000?

Please import the attached file in the same way as before. Make sure that "Panasonic-TV (active)" is listed as the device at the top of CRU when you import.

thanks for the explanation
but dolby vision will not work even in games that has support for it on win11?

CheapTV · (Last edited: Today, 02:06 PM by CheapTV)

Hi there.

Same for my cheap TCL p745 (98UHD). I can let show windows 11 that my TV ist DV certifiate, but my TV only show HDR10 mode. Also with another tool called "ColorControl" i can set my TV to HDR10+ mode. My TV also use this mode after modding, but for what. Windows cant handle this.

And as allways VRR Flickering... dont know what to try anymore. Cheap hardware will show cheap picture. Simple, try to accept it.

My TV use DV in Prime Video or Netflix TV Apps, but not in W11.

Also DV is not DV. You need DV Game in your TV, and even then XBOX will use it, maybe not. I am so frustrated. Sorry for that.

With VRR my TV lose sometimes signal with high res and 144 Hz. Even TCL changed my TV-Mainboard, still remains. Tried best cables. Fibre also too. 0,5m length. Nothing help.

Maybe i upload the EDID for my TV and hopefully someone can help.

djsolidsnake86 · Today, 03:20 PM

(Today 01:47 PM)CheapTV Wrote: Hi there.

Same for my cheap TCL p745 (98UHD). I can let show windows 11 that my TV ist DV certifiate, but my TV only show HDR10 mode. Also with another tool called "ColorControl" i can set my TV to HDR10+ mode. My TV also use this mode after modding, but for what. Windows cant handle this.

And as allways VRR Flickering... dont know what to try anymore. Cheap hardware will show cheap picture. Simple, try to accept it.

My TV use DV in Prime Video or Netflix TV Apps, but not in W11.

Also DV is not DV. You need DV Game in your TV, and even then XBOX will use it, maybe not. I am so frustrated. Sorry for that.

With VRR my TV lose sometimes signal with high res and 144 Hz. Even TCL changed my TV-Mainboard, still remains. Tried best cables. Fibre also too. 0,5m length. Nothing help.

Maybe i upload the EDID for my TV and hopefully someone can help.

how you enabled hdr10+ with color control?