NUC10i7FNH using both HDMI and Displayport on same monitor...

[Barryluo]

Hello,

Something interesting came up when I was using my NUC:

I have a monitor with 1 DisplayPort and 2 HDMI inputs, and I connected my NUC10i7FNH to the monitor with a HDMI-HDMI cable, AND a USB-C to DisplayPort cable. When turning on the NUC, it's always the HDMI input gives the display signal, the from the DisplayPort shows no signal... What gives? Is there a priority thing with these two display outlets on NUC? or is there's a setting can be adjusted in order to have both display outlet work at the same time? 

When I only plug the USB-C to DisplayPort cable, the monitor works as normal.

I currently have another post opened in regards to my glitchy problem, which shows my NUC info, linked below if anyone is interested: https://community.intel.com/t5/Intel-NUCs/NUC10i7FNH-Random-glitchy-froze-crush-problems/m-p/1236755#M78915

[n_scott_pearson]

Hhmmm, it is not the iGFX or the NUC that is responsible for the two interfaces not working independently. I have double-connected systems to a monitor before without issue. At present, I have a monitor that is connected to two systems, one via HDMI and the other via VGA, and both connections work and I can switch between them using the monitor's OSD. This would suggest to me that this is either an issue with the monitor. Perhaps it has a configurable feature whose setting says only connect to the first system seen?

...S

[Barryluo]

Hello @n_scott_pearson ,

I probably wrote the post in a bit hurry yesterday, so let me add some more info:

The situation I mentioned in the post ONLY happens before Windows 10 starts. Once I'm in Windows 10, both connections work and displays as normal (works as extended or mirrored monitor, NUC recognize them as two separate outputs).

When I was working in BIOS, or a bootable USB, with both connections, only HDMI will display, USB-C to DisplayPort has no signal.

It's not really a problem, just noticed it, and wondering if there's any explanation for it...  

[n_scott_pearson · Accepted solution]

The BIOS will only support a single monitor and, if it happens to be the HDMI port that is detected first, that's what you get.

...S

[Barryluo]

Okay, that's good to know.

Thanks a lot!