Windows 10: i have a Navdia 2080ti and a HDR capable 70" HDTV and was using HDR until i turned TV and...

Processor IntelR CoreTM i7-9700K CPU @ 3.60GHz 3.60 GHz Installed RAM 64.0 GB NVIDIA GeForce RTX 2080TiI plugged in the new 70" Roku HDTV and it showed on my Windows 11 that it was HDR capable, I turned it on and played FFXIV and Netflix with no problems in HDR. When i went to bed i turned the TV and PC off; however, when i woke up and turned system on it said HDR not supported. I checked and my Direct X version is DX 12 and all drivers are up to date.

:)

 

HDR

Hello! I am an Independent Advisor, I would love to help you out!

The display needs to be HDR capable as well.

To enable HDR please see the steps referred to in this article:

https://support.microsoft.com/en-us/help/404026...

 

HDR capability not detected by some games. Like games using the Frostbite engine.

Hi TommyHildizzle，

Welcome to Microsoft Community.

The Xbox feature in Windows 11 will automatically enable HDR (provided you have a graphics card with minimum performance requirements). In fact, Battlefield 1 and 5 games support HDR, so if your PC has HDR enabled automatically, the game will be enabled by default.

Given your situation so far, I would suggest you check here to calibrate your monitor's HDR functionality and troubleshoote that aspect.

Then turn on the "Auto HDR" setting by following these steps:

1. Select the Start button, then enter settings.select Settings > System > Display.
   
2. If you have multiple displays, select your HDR-capable display at the top.
   
3. Turn on Use HDR, then select More options.
   
4. Turn on Auto HDR.
   
5. Go back to the game to see if HDR is enabled.
   

On the other hand, go to Start - Settings -Windows Update - Update History to see what updates have been installed recently and I can help you check the update history to see if any recent updates have reported issues with HDR.

If there is anything not clear, please do not hesitate to let me know.

Best Regards,

| Microsoft Community Support Specialist

 

HDR and WCG are disabled but my Computer+TV are HDR/WCG capable

The option HDR/WCG is not available under Windows 10 RS4 and disabled under Win10 RS5 build 17713.

In here my equipment:

Display TV:
Samsung TV UHD HDR UE55MU7005TXXC (w/latest firmware: 1221.0). UHD Color function is active for HDMI.
HDMI Cable:
UGreen 4K HDR 60Hz Cable HDMI 2.0 Certified 18Gbps. No issues with this Cable under a PS4 Pro - HDR games.

Computer:

Zotac ci547-nano (Intel i5-7200u, Intel HD 620) --> I have been talking with their tech support to have a new BIOS and LSPCON Firmware update to be aligned with Intel HDR Whitepaper requirements. They already tested successfully the system (HDR compatibility)
with two different Displays (none of them are TVs).

Windows Version:

Windows 10 x64 RS5 (latest build 17713)

Also tested on Windows 10 x64 RS4 (final build)

Intel Graphic Drivers:

24.20.100.6194 (latest release). Same issue also under previous versions.

In here an extract of my DxDiag report:

Current Mode: 3840 x 2160 (32 bit) (60Hz)

HDR Support: Not Supported

Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709

Color Primaries: Red(0.659180,0.339844), Green(0.244141,0.669922), Blue(0.129883,0.040039), White Point(0.312500,0.329102)

Display Luminance: Min Luminance = 0.010000, Max Luminance = 1499.000000, MaxFullFrameLuminance = 799.000000

Monitor Name: Generic PnP Monitor

Monitor Model: SAMSUNG

Monitor Id: SAM0DEF

Native Mode: 3840 x 2160(p) (60.000Hz)

Output Type: Displayport External

Monitor Capabilities: HDR Supported (BT2020RGB BT2020YCC Eotf2084Supported )

Display Pixel Format: DISPLAYCONFIG_PIXELFORMAT_32BPP

Advanced Color: Not Supported

I also tested different resolutions and frequencies. Same results.

I have some doubts regarding that info reported. I have been checking where that data is coming from, and is supposed coming from here:

IDXGIOutput6::GetDesc1 (dxgi1_6.h) - Win32 apps

DXGI_OUTPUT_DESC1 (dxgi1_6.h) - Win32 apps

https://docs.microsoft.com/es-es/windows/desktop/api/dxgicommon/ne-dxgicommon-dxgi_color_space_type

The point is, according to this guide:

https://docs.microsoft.com/en-us/wi...ddxgi/high-dynamic-range-and-wide-color-gamut

And also to this code example:

DirectX-Graphics-Samples/D3D12HDR.cpp at master · microsoft/DirectX-Graphics-Samples

What determines if a Monitor/TV is HDR capable is if 'ColorSpace' is reported as 'DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020'

My question is, where is that information coming from?

As far as I could undertand that data is not an EDID information coming from TV. EDID information according DXGI_OUTPUT_DESC1 structure are only 'Color Primaries' and 'Display Luminance'... BUT and this is a big BUT, according to 'Monitor Capabilities' it
is supporting G2084 and BT2020...

Why 'ColorSpace' is not reported as 'DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020' on my system but as 'DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709'??

I think the issue is more or less located on how this ColorSpace is reported/calculated but I couldn´t find any more information on MS Docs about it.

Thanks for your support in advance!