Can't get 3840x2160 on CRU's standard resolution

[jazzmichael]

Hi guys,
I have a AOC 4k u2879vf monitor with Intel HD4600 Graphic card. The monitor supports upto 3840x2160 @60phz. However, the intergrated HD4600 won't let me set the refresh rate to 60pHz. The maximum is only 30pHz.

When I use CRU 1.3, there is not 3840x2160 in the standard resolution, and I can't add this resolution to the standard resolution at all. Is there any other way to add this?

FYI, the HDMI cable is 2.0. All hardware is fine. Just not getting 3840x2160 @60pHz.
It's very frustrating.

Thanks a lot!

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BTW, this is the EDID info:

Intel® HD Graphics 4600




Report Date: Thursday, March 23, 2017
Report Time [hh:mms]: 12:15:23 PM
Driver Version: 20.19.15.4624
Operating System: Windows* 10 Pro (10.0.14393)
Default Language: English (United States)
Physical Memory: 16286 MB
Vendor ID: 8086
Device ID: 0416
Device Revision: 06
Graphics Output Protocol (GOP) Version: 5.0.1032
Current Resolution: 1920 x 1080




Processor: Intel® Core™ i7-4712HQ CPU @ 2.30GHz
Processor Speed: 2295 MHz
Processor Graphics in Use: Intel® HD Graphics 4600
Shader Version: 5.0
OpenGL* Version: 4.3
OpenCL* Version: 1.2


* Microsoft DirectX* *
Runtime Version: 12.0
Hardware-Supported Version: 11.1




* Devices connected to the Graphics Accelerator *


Active Displays: 1
Inactive Displays: 1




* Built-in Display *


Display Type: Digital
DDC2 Protocol: Supported
Gamma: 2.2
Connector Type: Embedded DisplayPort
Device Type: Built-in Display


Maximum Image Size
Horizontal Size: 13.78 inches
Vertical Size: 7.48 inches


Supported Modes
3840 x 2160 (60p Hz)
3840 x 2160 (48p Hz)







* Digital Television *


Display Type: Digital
DDC2 Protocol: Supported
Gamma: 2.2
Connector Type: HDMI
Device Type: Digital Television


Maximum Image Size
Horizontal Size: 24.41 inches
Vertical Size: 13.39 inches


Supported Modes
640 x 480 (60p Hz)
640 x 480 (72p Hz)
640 x 480 (75p Hz)
720 x 480 (60p Hz)
720 x 576 (50p Hz)
800 x 600 (56p Hz)
800 x 600 (60p Hz)
800 x 600 (72p Hz)
800 x 600 (75p Hz)
1024 x 768 (70p Hz)
1024 x 768 (60p Hz)
1024 x 768 (75p Hz)
1280 x 720 (50p Hz)
1280 x 720 (60p Hz)
1280 x 960 (60p Hz)
1280 x 1024 (75p Hz)
1280 x 1024 (60p Hz)
1440 x 900 (60p Hz)
1680 x 1050 (60p Hz)
1920 x 1080 (60p Hz)
1920 x 1080 (50p Hz)
1920 x 1080 (70p Hz)
1920 x 2160 (60p Hz)
3840 x 2160 (25p Hz)
3840 x 2160 (60p Hz)
3840 x 2160 (30p Hz)
3840 x 2160 (65p Hz)
3840 x 2160 (24p Hz)

[ToastyX]

You can't add 3840x2160 @ 60 Hz as a standard resolution. It can only be added as a detailed resolution or TV resolution. You shouldn't need to add it anyway. It should already be defined by default, possibly in the default extension block, which CRU can't read with Intel GPUs. I doubt the Intel HD 4600 supports HDMI 2.0. That's probably the issue.

[cLick1338]

Are you using one of the beta drivers that support EDID overrides? Did you also try adding the custom resolution using Intel's driver utility itself?

[jazzmichael]

(03-25-2017 10:34 PM)ToastyX Wrote:  You can't add 3840x2160 @ 60 Hz as a standard resolution. It can only be added as a detailed resolution or TV resolution. You shouldn't need to add it anyway. It should already be defined by default, possibly in the default extension block, which CRU can't read with Intel GPUs. I doubt the Intel HD 4600 supports HDMI 2.0. That's probably the issue.

It's not there and I can't add it either. Maybe it's Intel HD 4600's issue. Very annoying.

Thanks Toast!

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(03-25-2017 10:56 PM)cLick1338 Wrote:  Are you using one of the beta drivers that support EDID overrides? Did you also try adding the custom resolution using Intel's driver utility itself?

Yes. I have downloaded the beta driver from the Intel forum. However, it's not working. When I use Intel's driver utility, it always says "exceed maximum bandwidth".

Thanks