iris 540 of i5 6260U cannot support lg 31mu97 with 4096x2160p at 60Hz

[cliu38]

I have

intel nuc 6i5syk with i5 6260u

mini DP - mini DP and mini DP - DP cables

LG 31mu97 monitor which is 4096 x 2160p.

after installing win10 x 64 the monitor work well with 3840 x 2160 at 64Hz

but after installing iris 540 driver, the monitor shows no signal.

If I turn off monitor's DP1.2 option, the monitor can work with 4096 x 2160 at 30Hz with self-setting resolution.

How can I get it work with 4096 x 2160 at 60 Hz? I tried several different versions driver which does not solve the problem.

Thank you

[Stefan3D]

According to https://ark.intel.com/products/91160/Intel-Core-i5-6260U-Processor-4M-Cache-up-to-2_90-GHz Intel® Core™ i5-6260U Processor (4M Cache, up to 2.90 GHz) Product Specifications it should work theoretically.

Did you install the brand new monitor driver ?

31MU97 Win10 RS3 driver 11/28/2017

www.lg.com/de/support/service-produkt/lg-31MU97-B

[cliu38]

Yep, I installed the monitor's driver and tried newest and old versions. but it dosen't help. Once I install the graphic driver the monitor lost the signal.

[idata]

Milky_Way: Thank you very much for contacting the Intel® communities. We will do our best to try to fix this problem.

In order to better assist you, please provide the information requested on the following link:/message/319025# 319025 https://communities.intel.com/message/319025 Please try driver 4849:https://downloadcenter.intel.com/product/89188/Intel-NUC-Kit-NUC6i5SYK https://downloadcenter.intel.com/product/89188/Intel-NUC-Kit-NUC6i5SYK Any further questions, please let me know. Regards,Alberto R

[cliu38]

Thank you for replying. I tried the newest 4849 graphic driver and several older drivers, such as 4352(https://software.intel.com/en-us/forums/graphics-driver-bug-reporting/topic/609602 NUC6i5SYH displayport flickering problem ), but no one was working in my nuc.

Operating System: Microsoft Windows 10 Pro N(10.0.16299 Build 16299)

Physical Memory (Installed): 16 GB

Processor: Intel(R) Core(TM) i5-6260U CPU @ 1.80GHz

System Type: x64-based PC

Total Installed Updates: 14 Updates - See Detailed View for more information

Display Adapter(s): Intel(R) Iris(R) Graphics 540 23.20.16.4849

System Manufacturer: Intel corporation

System Model: NUC6i5SYB

Network Adapter(s): Intel(R) Dual Band Wireless-AC 8260 19.50.1.6

Intel(R) Ethernet Connection I219-V 12.15.22.6

Disk(s): SAMSUNG MZVPV256HDGL-00000 154.19 GB (available) 10.0.16299.15

SanDisk Cruzer Switch USB Device 4.74 GB (available) 10.0.16299.15

Seagate Portable USB Device 20.77 GB (available) 10.0.16299.15

System Messages: Included

Direct-X Diagnostics: Included

[idata]

Milky_Way: Thank you very much for providing that information.

Please try to install driver 4877 to try to fix this problem:

https://downloadcenter.intel.com/download/27355/Graphics-Intel-Graphics-Driver-for-Windows-15-60-?product=88358 https://downloadcenter.intel.com/download/27355/Graphics-Intel-Graphics-Driver-for-Windows-15-60-?product=88358

If the problem persists then, please provide the SSU report:https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows- https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-

And also please provide the DxDiag report:

Click on the "Start Menu",Type "DxDiag" ,Press "Enter" ,Wait for the DirectX Diagnostic Tool to finish loadingIn the DirectX Diagnostic Tool, click "Save All Information" ,Save the file DxDiag.txtInclude DxDiag.txt as an attachment in the Intel Community Forum

To attach a file, you must click "Use Advanced Editor" in the top right corner of the response box, then the "attach" option will appear in the bottom right corner of the response box.

Any questions, please let me know.

Regards,

Alberto R

[cliu38]

Yep, I tried driver 4877 which is not working, too. and I save the scanning before and after installing the graphic driver.

[idata]

Milky_Way: Perfect, thank you very much for letting us know that information. We will do further research on this matter, as soon as I get any updates I will post all the details on this thread.

Just to make sure, which is the exact resolution you are trying to achieve and which video ports are you using?

Are you using adapters or converters?

Additionally, on the link below you will find the resolutions supported depending on the video port you are using, page 26 and 27:

https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC6i5SYB_NUC6i3SYB_TechProdSpec.pdf

Any questions, please let me know.

Regards,

Alberto R

[idata]

Milky_Way: I just wanted to check if you saw the information we requested previously?

Any questions, please let me know. Regards,Alberto R

[cliu38]

Thank you for your notification. Sorry, just see the following information.

Just to make sure, which is the exact resolution you are trying to achieve and which video ports are you using?

- 4096 x 2160 @60Hz via miniDP - miniDP cable and miniDP - DP cable

Are you using adapters or converters?

- no, I'm using miniDP - miniDP cable and miniDP - DP cable

Additionally, on the link below you will find the resolutions supported depending on the video port you are using, page 26 and 27:

https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC6i5SYB_NUC6i3SYB_TechProdSpec.pdf

- Yep, I see on page 27, "The maximum supported resolution is 3840 x 2160 @ 60 Hz, 30bpp."

but in my case, the computer cannot find the monitor once graphic driver is installed via miniDP - miniDP cable which is working at 3840 x 2160 @ 64 Hz before that.

(are their output data rate same, between 3840 x 2160 @ 64 H and 4096 x 2160 @ 60 H)

Also, Alar K. in his case, the computer can find the monitor and able to output signal with 4096 x 2160 @ 60 H (but with flickering via mDP-DP cable, https://software.intel.com/en-us/forums/graphics-driver-bug-reporting/topic/609602 NUC6i5SYH displayport flickering problem )

[idata]

Milky_Way: You are very welcome, no problem, thank you very much for letting us know those details. 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.

Any questions, please let me know. Regards,Alberto R

[Ronny_G_Intel]

hi Milky_Way

I am not so sure if I am understanding this issue correctly, as you said the NUC Kit NUC6i[x]SY https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC6i5SYB_NUC6i3SYB_TechProdSpec.pdf https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC6i5SYB_NUC6i3SYB_TechProdSpec.pdf supports a maximum resolution of 3840 x 2160 @ 60 Hz, 30bpp when using the DP port.

The latest driver available is version 4877 and available for download here: https://downloadcenter.intel.com/download/26260/NUCs-Intel-HD-Graphics-Driver-for-Windows-10-for-Intel-NUC-Kit-NUC6i-x-SY?product=89190 Download Intel® HD Graphics Driver for Windows® 10 for Intel® NUC Kit NUC6i[x]SY

Can you please provide me with the Dxdiag log so that I can check your system? Here is how you can generate the file: Run "dxdiag" and press OK, In the window that has now appeared choose "Save all information". After you've saved the file, please attach it to a new community post.

Thanks,

Ronny G

[cliu38]

Hi Ronny,

Thank you for replying, I tried the newest 4877 driver which is not working for me, too. Here is the Dxdiag report.

Also, yep you are right, as the pdf shows, NUC Kit NUC6i[x]SY supports a maximum resolution of 3840 x 2160 @ 60 Hz, 30bpp when using the DP port.

1. The monitor should work well at 3840 x 2160 @ 60 Hz, 30bpp when using the DP port. But currently, it stops working (no signal) with graphic driver.

2. some people shows that NUC 6i5SYH + LG 31MU97 can work at 4096 x 2160 @ 60Hz when using the DP port (unstable, but at least, it's working)

Regards,

Chang

[Ronny_G_Intel]

Hi Chang,

Apologies for the late reply, I was out of the office.

I have a similar set up (different TV) and it can do 3840 x 2160 @ 60 Hz using the DP port with the latest Graphics Driver.

This makes me believe that there could be an issue when using this combination, I also looked up on the LG* website and found the following information: http://www.lg.com/us/support/products/documents/31MU97%20Spec%20Sheet.pdf it seems that they have also done some testing and therefore the list of supported Graphics Cards. Have you checked with LG* support to check on any compatibility issue or perhaps newer firmware update?

Regards,

Ronny G

[idata]

Milky_Way: I just wanted to check if the information posted previously was useful for you and if you need further assistance on this matter?

Any questions, please let me know. Regards,Alberto R

[cliu38]

Hi Alberto,

Sorry I was away for several weeks and I just got a new PC which is i5 8600K + ASUS ROG STRIX Z370-I GAMING. The issue is same, once the graphic driver is installed, the monitor shows no signal.

I also sent the question to LG and waiting the answer.

Regards,

Chang

[idata]

Hi Milky_Way: No problem at all. Thank you very much for letting us know those updates. At this point then the best thing to do will be to wait for LG's response about this scenario.

Any questions, please let me know. Regards,Alberto R

[idata]

Milky_Way: I just wanted to check if you were able to get any response from LG and if you need further assistance on this matter?

Any questions, please let me know. Regards,Alberto R