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I have an NUC 8i5 8265 and I've just purchased a Lenovo m14 USB-C monitor that isn't working.

HHurs
Beginner
365 Views

It gets powered from the USBC port on the front of the NUC, but will not display and shows up as a 'Billboard Device' I have updated all drivers etc. Still no luck. Any suggestions?

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3 Replies
n_scott_pearson
Super User Retired Employee
307 Views

First of all, this is not the correct way to identify your NUC. There are multiple NUC families that have a "NUC8i5" member! It is the two letter family code that comes after the processor designation (i.e. after the 'i5') that tell you the NUC's family. For more information, consult this document: Intel NUC Product Code Naming Convention. I am presuming that you have one of the BE NUCs (i.e. a NUC8i5BEH or NUC8i5BEK kit or derivative system)...

 

You cannot plug this monitor into the front panel USB-C port of the BE NUCs. It won't work there. You have to plug it into the back panel USB-C port. Why? Because the monitor requires a USB-C port that supports DisplayPort Alt Mode. Only the back panel USB-C port supports this mode. The front panel USB-C port is just a USB 3.1 connection point.

 

Hope this helps,

...S

HHurs
Beginner
307 Views

Thanks for the reply. Alright so I've got a NUC8i5INHX and unfortunately just usbc on the front, so that pretty well confirms what I was thinking. Oh well looks like back to Lenovo the M14 goes. Shame I didn't do a little more research first.

n_scott_pearson
Super User Retired Employee
307 Views

If nothing else, I hope you see now why it's important to identify your NUC properly.

 

You are correct; there is no support for DisplayPort Alt Mode in this USB-C port. In fact, something I missed earlier, the monitor also requires that USB Power Delivery 2.0 be supported. This is NOT supported in any of the existing NUCs.

 

...S

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