Dell HDMI display is no longer detected after BIOS upgrade

[Matti1]

I installed a fresh NUC 11 today. It is a fresh Windows 11 installation and all except USB worked fine (USB was lagging). Therefore I decided to update drivers and BIOS. After the BIOS update my DELL up2716d is no longer detected. I completed installation of all drivers (Ethernet driver fails to update), but this didn't help. One of my HDMI displays is still not detected. So I switched the HDMI cables to see if that would help. No success. Only one of my HDMI displays is working properly.

What do I need to do to fix this?

NUC 11 Core i5

Dell up2716d display connected via HDMI (not detected after BIOS update)

Second Dell display connected over HDMI to VGA, working fine.

[Andres_Intel]

Hello Matti1,

Thank you for posting on the Intel®️ communities. I am sorry to hear that you are having display issues, I will be happy to help you.  

To have a better understanding of the situation, please answer the following questions: 

• Are you using display adapters for the monitor that is not working?
• Download, run, save and attach the report for the following tool Intel® System Support Utility for Windows (SSU), you can find the steps on the link How to get the Intel® System Support Utility Logs on Windows.  

Regards,  

Andres P. 

Intel Customer Support Technician 

[Matti1]

Scan done. It was not possible to submit using the "Submit" button due to some issue with the address "https://servicerequestmgmt.intel.com/webticketui/"

 I also realize that I should have posted this in the NUC forums...

The display is connected HDMI to HDMI.

I have also tried to connect it using USB-C with a Deltaco USBC-DP100-K Rev4 adaptor cable, USBC to DP. Display is detected, but it flickers, and USB Mouse connected at the back is laggy and almost impossible to control. USB mouse connected at the front works much better, but the display flickers.

[Matti1 · Accepted solution]

Issue found. The HDMI cable had poor connection. I found the issue after a lot of tests and replaced it with a new cable.

[Andres_Intel]

Hello Matti1,

Thank you for your response, and all the information provided, it has been really helpful.

Happy to hear that the issue is fixed, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored. 

Regards,  

Andres P. 

Intel Customer Support Technician