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Beginner
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NUC7i5BNK, Windows 10, how to enable 10-bit 4:2:0 HDR?

I have an Intel NUC7i5BNK (Iris Graphics 640) running the latest 6229 graphics drivers and 0069 BIOS. When I enable HDR in Windows 10 graphics settings, under Advanced Display Settings it shows that I am outputting 4K 60Hz HDR to my Samsung QN65Q8FN TV, but at 8-bit RGB with dithering. I would like to output at 4K 60Hz HDR but using 10-bit YCbCr 4:2:0 instead as that is what most HDR video uses. Unfortunately I have not been able to find any setting to force this on my NUC. My TV is set to receive "HDMI UHD color" so that is not the issue. I have enabled YCbCr in the Intel Iris Graphics Control Panel -> Color Settings, but that seems to do nothing.

How can I output 4K 60Hz 10-bit 4:2:0 to my TV?

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Community Manager
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Hello NateHawk,

 

Thank you for joining our Intel ® Community.

 

We are currently performing further research in order to address your question.

 

We will reach you back as soon as we have an answer.

 

In the meantime please provide me with the report that the https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-Best System Support Utility will generate. To attach a file, you must click the "Attach" option on the bottom right-hand corner of the response box.

 

I hope this helps.

 

 

Regards,

 

 

Diego S.
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Beginner
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I've attached the system report as requested.

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Community Manager
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NateHawk: Thank you very much for providing that information.

 

 

We will continue with our research on this matter, as soon as I get any updates I will post all the details on this thread.

 

 

Regards,

 

Alberto R.

 

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
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Beginner
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Ok, thanks. I'll wait for your response.

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Community Manager
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Hello NateHawk,

 

Thank you for your response.

 

We are still investigating your case.

 

In the meantime we notice that you are running the latest optimized driver for the Intel® NUC Kit NUC7i5BNK that you own (.6229)

 

For testing purposes, please try a https://www.intel.com/content/www/us/en/support/articles/000005629/graphics-drivers.html Manual Installation of the latest graphic drivers for the Intel® Iris™ Plus Graphics 640 controller that you CPU has.

 

Please make sure that you uninstall the current graphic drivers that your system has, until the basic Microsoft*display driver is exposed (also make sure that you will do it with no internet access).

 

I hope to hear from you soon.

 

Regards,

 

Diego S.

 

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Beginner
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I did as you asked. First I completely removed the Intel Graphics Driver with no internet connection to prevent the driver from installing automatically. Then I installed the latest graphics driver (6323). Unfortunately the problem remains. I've attached a screenshot showing that it is still outputting 8-bit with dithering in HDR mode.

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Beginner
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I also just installed the Windows 10 October Update. Unfortunately it is still showing 8-bit with dithering when I enable HDR mode.

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Community Manager
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Hello NateHawk,

 

Thank you for your response, I understand.

 

We are performing research about the issue that you are reporting; I will post you back as soon as we have news.

 

I hope to hear from you soon

 

Regards,

 

Diego S

 

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Beginner
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Any updates?

 

I also encountered this problem.
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Beginner
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NateHawk,

See this Intel forum discussion, looks like it might be the answer to your issue?!

See the post at top of page 2.

RP

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Community Manager
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Hello NateHawk and ran_inc,

 

Thank you for your patience.

 

Based on the datasheet for the Intel® Core™ i5-7260U Processor graphics (the CPU installed in your unit), all supported media codecs operate on 8bpc, YCbCr 4:2:0 video profiles.

 

Here it is the https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-desktop-s-processor-line... Datasheet, Vol. 1: 7th Gen Intel® Processor Family for S Platforms (page 31)

 

For additional information you can access our https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/deep-color-support-graphic... Deep Color Support of Intel® Graphics - Technical White Paper

 

I hope this helps.

 

Regards,

 

 

Diego Sanchez Campos.

 

Intel (R) Customer Support Technician

 

Under Contract to Intel (R) Corporation

 

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Beginner
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10-bit HDR playback over HDMI was explicitly added in November 2017 for Intel HD Graphics 620 or better:

https://downloadcenter.intel.com/download/27266/Intel-Graphics-Driver-15-60-

Video codecs for SDR video use 8 bit 4:2:0 as you pointed out. However HDR video uses 10 bit 4:2:0 which is why I want to enable that mode in Windows 10. Since the driver release states that 10-bit HDR playback is supported, there should be a way to actually output that instead of 8-bit with dithering.

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Community Manager
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Hello NateHawk

 

Thank you for your response.

 

 

Let us investigate further this, I will reach you back as soon as possible.

 

 

I hope this helps.

 

Regards,

 

Diego Sanchez Campos.

 

Intel (R) Customer Support Technician

 

Under Contract to Intel (R) Corporation

 

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Community Manager
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Hello NateHawk,

 

Thank you for your patience.

 

We are still investigating your case; this time we need you to provide us with the SA# of your unit.

 

If you have trouble finding it, please use https://www.intel.com/content/www/us/en/support/articles/000005804/mini-pcs.html this link as a reference

 

As well, take a look at https://support.microsoft.com/en-my/help/4040263/windows-10-hdr-advanced-color-settings this link since it might be helpful.

 

This link is being offered for your convenience and should not be viewed as an endorsement by Intel® of the content, products, or services offered there.

 

I hope this helps.

 

Regards,

 

 

Diego Sanchez Campos.

 

Intel (R) Customer Support Technician

 

Under Contract to Intel (R) Corporation

 

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Beginner
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Hi, I won't be able to provide that number, I actually sold my NUC and decided to build a small Raven Ridge PC which I know has the option to output 10-bit color. Hopefully Intel Support is still able to find a solution, I may get another NUC down the road if I know the issue has been fixed.

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