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IGCIT is a Community-driven issue tracker for Intel GPUs.
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Unable to enable 10bpc on Monitor while using Intel ARC graphics, unless HDR is enabled #179

Closed bizude closed 1 year ago

bizude commented 2 years ago

Checklist [README]

Application [Required]

All applications.

Processor / Processor Number [Required]

Intel i9-13900K

Graphic Card [Required]

Intel ARC A770 LE

GPU Driver Version [Required]

Rendering API [Required]

Windows Build Number [Required]

Other Windows build number

No response

Intel System Support Utility report

intel-ssu.txt

Description and steps to reproduce [Required]

image image

I am unable to select bit-depth output options while using ARC A770 LE. When HDR is disabled, it forces 8-bit. When HDR is enabled, it forces 10-bit. I should be able to enable 10-bit without using HDR.

Device / Platform

Nixeus EDG27240X, connected via DisplayPort

Crash dumps [Required, if applicable]

No response

Application / Windows logs

No response

IntelSupport-Arun commented 2 years ago

Hi @bizude ,

Thank you for contacting us. I have the following questions for you for further investigation:

  1. May I know are you facing the same issue with Internal graphics or if the issue is specific while connecting the ARC 770? Please specify.
  2. May I know the reason for disabling the HDR ? Any specific reason?
  3. Have you verified the issue with the previous Intel Graphics Driver 31.0.101.3430? If not, could you give a try and let us know your observations?

Help us get the above information so we can continue our investigation and issue reproductions. Thank you.

IntelSupport-Arun commented 2 years ago

Hi @bizude , I had a discussion with the internal Team and here is update: The Intel Graphics Command Center currently only supports changing the color depth for native HDMI outputs. The Intel® Arc™ Limited edition cards use a Protocol Converter (PCON) to drive its HDMI from Display Port, thus this HDMI is not native. In consecuense, changing the color depth in currently not supported the Intel Graphics Command Center when using an Intel® Arc™ Limited Edition card. For Intel® Arc™ cards from other manufacturers and systems using mobile SKUs of Intel® Arc™, please refer to the manufacturer's documentation to verify if their HDMI are native or not.

Hope this help to answer your questions. Thank you.

bizude commented 2 years ago

Hi @bizude ,

Thank you for contacting us. I have the following questions for you for further investigation:

1. May I know are you facing the same issue with Internal graphics or if the issue is specific while connecting the ARC 770? Please specify.

2. May I know the reason for disabling the HDR ? Any specific reason?

3. Have you verified the issue with the previous  Intel Graphics Driver  [31.0.101.3430](https://www.intel.com/content/www/us/en/download/726609/intel-arc-graphics-windows-dch-driver.html)? If not, could you give a try and let us know your observations?

Help us get the above information so we can continue our investigation and issue reproductions. Thank you.

  1. I haven't tested the Xe iGPU lately
  2. While my monitor "supports" HDR, it isn't a good implementation.
  3. I have been unable to do this on any driver version
bizude commented 2 years ago

Hi @bizude , I had a discussion with the internal Team and here is update: The Intel Graphics Command Center currently only supports changing the color depth for native HDMI outputs. The Intel® Arc™ Limited edition cards use a Protocol Converter (PCON) to drive its HDMI from Display Port, thus this HDMI is not native. In consecuense, changing the color depth in currently not supported the Intel Graphics Command Center when using an Intel® Arc™ Limited Edition card. For Intel® Arc™ cards from other manufacturers and systems using mobile SKUs of Intel® Arc™, please refer to the manufacturer's documentation to verify if their HDMI are native or not.

Hope this help to answer your questions. Thank you.

It "answers" the question but not in a good way. How can you lack the ability to change bit depth via DisplayPort?!

Being able to select bit depth is a required feature for me.

At the very least, if a user is not allowed to manually choose the bit depth then the card should use the highest option available otherwise.

IntelSupport-Arun commented 1 year ago

Hi @bizude , Sorry, unfortunately changing the color depth is currently only supported over native HDMI outputs not via Display port.

Intel® ArcTM Limited Edition cards architecture does not support HDMI natively (via PCON) and DP does not offer the capability to change color depth, so this feature isn't supported. 

As this feature is not supported, I would like to close this case. Let me know if you have any further questions.

Pawels1992 commented 1 year ago

Hi! I have a question because 10-bit is important for me too. @IntelSupport-Arun You wrote that "changing the color depth is currently only supported over native HDMI outputs not via Display port" but how it works when I'm using Display Port with SDR and I have 8-bit but when I change to HDR then I have 10-bit depth via Display Port? It is possible to forced in next update to use 10-bit with SDR or its only "exclusive" for HDR?

IntelSupport-Arun commented 1 year ago

Hi @bizude , The support for 10-bit color depth is currently hardcoded to work only when HDR is enabled, since this is a requirement for HDR displayhdr.org

And, as mentioned earlier, manually changing the color depth is currently only supported on native HDMI outputs. Our team has submitted a feature request asking to enable changing the color depth manually on DisplayPort outputs.

Due to current workloads, I would like to let you know it might take up to 12 months to complete. However, it will take time, and it is very unlikely it will be available in the next update.

Having answered your follow-up questions and raised a feature request for your request, I would like to close this case if you don't have any more questions. I appreciate your understanding.

mickeybricks commented 1 year ago

It is Apr 4 2023, and it seems the issue has not been fixed. I am facing the similar problem: I`m using i7-13700H integrated graphic card "intel iris xe graphics". I can only switch to 4k 60hz 10bit only if I turn on HDR switch. However when turning off HDR, using SDR, it can only shows 8bit. Will the problem be solved in late 2023 as you mentioned in your last comment？@IntelSupport-Arun

sergeyn commented 1 year ago

Hi, same here. It is end of may 2023 now and I'm trying out graphics output of 13900k and I Can't make 10 bit work neither over display port nor over thunderbolt. It's 8 bit always. My monitor is not an HDR monitor, and 10 bit works no problem on nvidia gpu (both over thunderbolt and DP connections)

Shonk commented 1 year ago

Still no support added 24/09/23

Pull your fingers out of your a**es

I have enabled my igp on my 13900K to diagnose multi a monitor problem with my RTX 3090 and guess what the UHD 770 with 31.0.101.4826 has no 10bit support for DP without HDR enabled

Its not rocket science you can either fix it with a toggle like nvidia does or use 10bit by default like amd does on my 6900XT

srgzx commented 11 months ago

How is this still not fixed when it's nearly 2024?

And why wouldn't the driver automatically use 10-bit anyway when it's connected to a 10-bit capable display?

Why send an 8-bit signal to a native 10-bit display?!?

The fact that it defaults to 8-bit when the display reports that it's capable of 10-bit literally makes no sense at all, UNLESS there is some kind of chip errata that you're working around?

But the fact that it works when HDR is turned on, I mean why wouldn't it work with SDR? I'm not understanding what's going on here lol.

@IntelSupport-Arun I and I think others here would appreciate an actual explanation of what is going on.

theofficialgman commented 4 months ago

Same deal on iris xe graphics systems.

Guess another reason to keep recommending AMD apus when basic features like this are missing on Intel.

srgzx commented 4 months ago

So this still hasn't been fixed? Unbelievable...I stopped using Intel GPU because of this problem, lol.

brzz commented 4 months ago

NOW,new driver is release, 5762 can be enable 10bit SDR output at DP 无标题

KevinMX commented 4 months ago

NOW,new driver is release, 5762 can be enable 10bit SDR output at DP 无标题

Confirmed 10bpc is working on my Arc A380 now.

And also for those who tried to enter UEFI BIOS via HDMI and found their resolution locked at 800*600, and probably with the UEFI BIOS GUI not working properly (e.g. on MSI boards the UEFI Settings GUI is totally messed up via HDMI), the new version has fixed this.

Please connect via HDMI and upgrade the driver, which will also upgrade firmware.

alphagojo commented 4 months ago

any chance we will see this on Iris Plus 655? Just bought a high-dollar Eizo monitor for photography editing which supports 10-bit SDR thinking Nuc was 10-bit capable (as it literally says in the manual).

leonids2209 commented 3 months ago

Any chance this can be supported for UHD620 as well? is it a change in the driver or in the command center only?

Akaccia commented 1 week ago

UHD620 也有可能支持此功能吗？是驱动程序的更改还是仅命令中心的更改？

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