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UHD 730/770 & HDMI 2.1 & 4K@120Hz

h1dden-pr0cess
6,549 Views

Hello

 

My spec:

65" 4K@120Hz TV with HDMI 2.1 port

12900K (UHD 770) and 12100 (UHD 730).

True HDMI 2.1 cable

 

My problem:

4K@120Hz via HDMI (motherboard ASRock H610) don't works with any driver from Intel Download Center.

But it's works with 30.0.101.1002 driver from Windows Update.

 

What's wrong with driver from Intel Download Center?

 

Screenshot (7) - UHD 770 & Win10 (HDMI, not DP)

Screenshot (38) - UHD 730 & Win11 (HDMI, not DP)

 

 

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12 Replies
Jean_Intel
Employee
6,498 Views

Hello h1dden-pr0cess,

 

Thank you for posting on the Intel️® communities. We understand that you are having issues setting the 4K@120Hz via HDM with Intel Generic drivers.

 

To better assist you, provide me with the following:

  • Which drivers from the Intel Download have you tried?
  • What is the model of your TV display?
  • To further investigate this matter, can you provide us with the following reports:
  •  Intel®️ System Support Utility (Intel®️ SSU):
    • Download the Intel SSU
    • Open the application and click "Scan" to see the system and device information. By default, Intel®️ SSU will take you to the "Summary View."
    • Click on the menu where it says: "Summary" to change it to "Detailed View."
    • To save your scan: click "Next"; then "Save."
  •  Intel® Graphics Command Center:
    • Open the Intel Graphics Command Center
    • Navigate to the Support tab
    • Select System Diagnostic
    • Click Generate Report
    • Select Save and name the output file.

 

Best regards,

Jean O. 

Intel Customer Support Technician


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h1dden-pr0cess
6,479 Views

Dear Jean,

 

Thanks for your answer.

 

1. Drivers: .4091, .4123, .4125 and .4146.

2. Xiaomi L65R8-X (Redmi X 2022) 65".

3. Reports attached. 120Hz with driver 30.0.101.1002 from WU, 60 Hz with driver 31.0.101.4146.

 

BR

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MUC
Valued Contributor II
6,450 Views

I don't know how best to phrase it, but this is a borderline case.

ASRock specified this motherboard’s capabilities for HDMI as follows:
HDMI 2.1 TMDS Compatible with max. resolution up to 4K x 2K (4096x2160) @ 60Hz. This means 18 Gbps of bandwidth support. Coincidentally, 4K 120 Hz YCbCr 4:2:0 8 bpc is also within this limit. However, it is not officially intended and most likely only "accidentally" active in the driver version mentioned and has been trimmed to official specification with later driver versions.

 

The ASRock H610TM-ITX motherboard is sold with an optional DisplayPort connector. Is there such a connector at your device?

 

MUC_0-1677700789896.png

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h1dden-pr0cess
6,319 Views

Dear MUC,

 

There is no problem with DP. I also think it's a bug of driver from Windows Update. But the problem in this case is that the driver from Windows Update, when connected to the network, overwrites the driver from Intel Download Center.

 

PS with Core i5-1125G4 (my laptop) there is no problem with HDMI 4K@120Hz


BR

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MUC
Valued Contributor II
6,273 Views

I was asking about the DisplayPort connector because there is a way to output 4K @ 120Hz RGB 4:4:4 10 bpc HDR to an HDMI display using a protocol converter cable. You can find a reference here:

 

https://community.intel.com/t5/Graphics/Intel-UHD-Graphics-770-HDR/m-p/1438596#M111969

 

I guess that you will have to stay with the driver version that works for you if you don't need a newer version. The native HDMI interface of all current Intel Processors (including 12900K, 12100 and 1125G4) is not intended to work with 120 Hz.

h1dden-pr0cess
6,257 Views

Thanks for the information!

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Jean_Intel
Employee
6,402 Views

Hello h1dden-pr0cess,


We appreciate the information you shared.


Reviewing your answer and reports, you mentioned that you tried multiple Intel® Arc™ & Iris® Xe Graphics Drivers. Could you try a clean installation of the latest Intel® Graphics – Windows* DCH Drivers 31.0.101.3790?


However, it is important to mention that the IGCC report does not list the 3840 x 2160 @120Hz as a supported resolution on any of the reports you shared. The Supported Modes listed are the following:


  • 3840 x 2160 (24p Hz, 4K)
  • 3840 x 2160 (30p Hz, 4K)
  • 3840 x 2160 (50p Hz, 4K)
  • 3840 x 2160 (60p Hz, 4K)


Also, the information shared by @MUC is important to take into consideration.


Best regards,

Jean O. 

Intel Customer Support Technician


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h1dden-pr0cess
6,316 Views

Dear Jean,

 

 

With Core i5-1125G4 (my laptop) there is no problem with HDMI 4K@120Hz

With .3790 (clean installation) I have 4K@60Hz.

Can you confirm that UHD 730/770 officially support only 4K@60Hz via HDMI on the motherboard (not via DP to HDMI protocol converter)?

 

I just want to understand is this a driver or my hardware problem. The problem in this case is that the driver from Windows Update, when connected to the network, overwrites the driver from Intel Download Center. 

 

BR

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Jean_Intel
Employee
6,282 Views

Hello h1dden-pr0cess,

 

Thanks for the information provided.

 

You should contact ASRock to confirm the resolutions supported for their Motherboard HDMI implementation. It is important to mention the Original Equipment Manufacturer (OEM).

 

It is important to mention that Windows normally installs OEM drivers. These drivers are customized to work with each specific system, so this driver can be limited to work at 4K at 60Hz to meet their system expectations. However, you should contact ASRock to confirm this information.

 

Best regards,

Jean O.

Intel Customer Support Technician


h1dden-pr0cess
6,257 Views

Thanks for the information. I will try to contact with ASRock.

And then I will report the result.

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Jean_Intel
Employee
6,221 Views

Hello h1dden-pr0cess,

 

Thanks for the information provided.

 

We would keep this thread open for a few days to wait for the results. Let us know if you face any inconvenience.

 

Best regards,

Jean O.

Intel Customer Support Technician


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Jean_Intel
Employee
6,059 Views

Hello h1dden-pr0cess,


We hope you are doing fine.

 

We have not heard back from you. So we will close this thread. If you need any additional information, submit a new question, as this thread will no longer be monitored.

 

Best regards.

Jean O. 

Intel Customer Support Technician.


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