Setting up premade bios settings on multiple NUCs thru windows /w Persistent Display enabled. nuc8cchkr and nuc7i5DNHE

[IKorp2]

iSetupCfg didn't change persistent video setting in bios. It's not even listed in dumped file. Is it outside of amibios settings or something? How can i enable persistent display setting to a remote nuc without local access? Can we have this setting in the windows driver package so we could enable it in OS or is this impossible?

[DSk001]

The NIC changes according to which Intel AMT release you are using.

• The Intel CSME firmware contains the Intel AMT functionality.
• Flash memory stores the firmware image.
• Enable the Intel AMT capability by using Intel CSME as implemented by an OEM platform provider. A remote application performs the enterprise setup and configuration.
• On power-up, the firmware image is copied into the Double Data Rate (DDR) RAM.
• The firmware executes on the Intel® processor with Intel ME and uses a small portion of the DDR RAM (Slot 0) for storage during execution. RAM slot 0 must be populated and powered on for the firmware to run.

[IKorp2]

Let me clarify : Enter Visual bios - advanced - devices - video - display emulation - persistent display emulation ( or something like this)

This setting i can't be changed remotely, except VNC+ with amt. Which i can not use in this situation because firewall.

[AndrewG_Intel]

Hello IKorp2

Thank you for posting on the Intel® communities.

We are checking this thread and we would like to know if you still need assistance, if yes, could you please confirm the following details?

1- Are you interested in setting a custom BIOS file with specific settings to deploy on several Intel® NUCs or just to change settings on the BIOS?

2- When you mentioned "iSetupCfg" do you refer to Intel® iSetupCfg use to update NVRAM variables and change settings in the BIOS?

Also, Display Emulation is only supported on specific Intel® NUC models, you can find the list of supported models in the below link, please scroll down to "Related Products". The Intel® NUC Kit NUC7i5DNHE is listed but Intel® NUC 8 Rugged Kit NUC8CCHKR is not.

What is Display Emulation and How Do you Enable it on Intel® NUC products?

https://www.intel.com/content/www/us/en/support/articles/000033413/intel-nuc.html

In the previous link, you will also find the steps to enable this in the BIOS, but these steps are intended when there is physical access to the BIOS.

Should you have additional inquiries, please let us know.

Regards,

Andrew G.

Intel Customer Support Technician

A Contingent Worker at Intel

[IKorp2]

Hello,

Yes to all.

I just wan't to know if i can set display emulation on/off from a distance.

If this setting could be manipulated somehow thru OS, that would be great.

[AndrewG_Intel]

Hello IKorp2

We have not heard back from you so we will proceed to close this inquiry. If you need further assistance please create a new thread and post your inquiries.

Regards,

Andrew G.

Intel Customer Support Technician

A Contingent Worker at Intel

[AndrewG_Intel]

Hello IKorp2

Thank you for your response.

Please allow us to look into this inquiry regarding if it is possible to manipulate the display emulation settings remotely or within the operating system. As soon as we have more details we will be posting back in this thread.

Regards,

Andrew G.

Intel Customer Support Technician

A Contingent Worker at Intel

[Ronny_G_Intel]

Hi IKorp2,

See below some pertinent information to your question:

1. NUC7i5DNHE.

1.1. Only units with revision Jxxxxx-504 and higher are supported. Can you please provide me with your systems SA and Serial number? And how many systems do you have?

1.2. This NUC model has a classic visual BIOS, so to enable the Display Emulation feature you should use vcustw64.exe, see below:

vcustw64 -bio=dni50067.bio -config -uqi=04fe -value=1 -queue=test.bio -applyqueue (if you run this command on a target system it will create BIOS file test.bio with Display Emulation = Headless display emulation and initiate BIOS update process to the target system).

vcustw64 -bio=dni50067.bio -config -uqi=04fe -value=2 -queue=test.bio -applyqueue (if you run this command on a target system it will create BIOS file test.bio with Display Emulation = Persistent display emulation and initiate BIOS update process to the target system).

Below is the detailed UQI description.

=============================

[04fe] - ONE_OF

Display Emulation

Allows emulation of display monitors for one or both HDMI ports when not attached to the system (headless config) or temporarily disconnected from the system (persistent config).

0 : No display emulation   (default)

1 : Headless display emulation

2 : Persistent display emulation

1.3. BIOS update initiated from the OS (aka unattended BIOS update) will trigger so-called BIOS update prompt that prevents unattended BIOS configuration. This is a default behavior introduced as a security feature.

1.4. There is a way to disable BIOS update prompt: BIOS settings => Security => Unattended BIOS Configuration => Never Prompt. That should be done beforehand and required physical presence.

2. NUC8CCHKR.

2.1. Unfortunately, the Display Emulation setting is not supported on NUC8CCHKR BIOS. This is why you can’t see this field in the dumped file.

Can you please let me know how critical is this feature and how many systems are you planning to deploy?

I hope this helps,

Regards,

Ronny G

[IKorp2]

1. Thanks. I can work with that. We deployed 1000 NUC7i5NDHE so far and will continue until next gen of NUCs that suit our needs.
2. Couple of thousand per year.
3. The problem : we run windows 10 ltsc at the moment and OS wants to run at full resolution when available. We mostly run videos and sometimes we run some stuff thru browser and we don't want to resolution to change. Persistent Display Emulation works fine most of the time, but sometimes OS gets the idea to change the resolution to 4K@30Hz and then the we are in the world of problems. One screen would work and the other would go blank. Displays we mostly use are single and dual 86" LGs atm.
4. Solution: Resolution cap to 1080p in the driver or in the BIOS? EDID override to generic resolution templates to control the messed up EDID or poor connection from the bad HDMI or power flapping? 😁

[Ronny_G_Intel]

Hi Ikorp2,

Can you please run the Intel SSU and provide me with the log file? Here is the URL:

https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-

Can you also provide me with the following details:

• Did you check for LG monitor firmware updates?
• What is the connection diagram, from NUC to monitors?
• What cables are in use?
• Are there dongles in use?
• When you say that 'sometimes' happens... when? Is there a trigger?

Thanks,

Ronny G

[Alberto_R_Intel]

Hello Ikorp2, I just wanted to check if you saw the information posted previously and if you need further assistance on this matter?

Regards,

Albert R.

Intel Customer Support Technician

[IKorp2]

well, i think i solved the problem with edid flapping by using 3rd party app (cru.exe) that edits the recommended resolution for selected edids. I wished that i could do this in advanced driver settings, but this works ok for now. This way i don't have to worry about driver versions or firmwares. Thanks for the help.

[Ronny_G_Intel]

I am glad to hear that you were able to find a solution for this issue.

Please let us know if you need anything else.

Regards,

Ronny G