Mac mini M1.....HDMI and USB C display look different

[jharvey71884]

Bought two LG UK670's and when I connect to the HDMI on one, it looks way sharper and colors are much better. On USB C, the monitor is too bright. Confirmed the settings are the same. And when flip the HDMIs, the pictures flip. Hoping to get them to match. Will I need something like a Caldigit to connect a display port - instead of using the USC C.

 

[gnomeisland]

Is one showing being detected as HDR and the other as SDR? Have you tried both monitors with another system previously and gotten a better match?

 

[jharvey71884]

I'm not sure how to check the HDR, but that would make sure. I will google that. I have swapped the monitors, cables and it's clearing USB C and HDMI not matching. Because they flip with the same photo.

 

[jharvey71884]

The monitors have HDR 10, but neither display is showing that it's checked. It's not an option.

 

[Coheebuzz]

Relevant thread with some workarounds...

https://forums.macrumors.com/threads/mbp-m1-and-lg-27uk850-w-washed-out-colors.2270452/