Windows 10 Nightlight

[MachTreck]

Hi

I set the registry key and restarted the computer but the night light is still not applied on the computer. Is the night light only working on the display port or should it also work with HDMI?

Which monitors are support for night light?

Regards
Patrick

[MachTreck]

After I connected the monitor with display port. My notebook doesn't recognize two screens. Both screens are treated as one, See the screenshot in the attachement.

In my office it works with two screens with another dockingstation attached to my notebook (Notebook Lenovo ThinkPad P51)

[MachTreck]

It works now. I had to change the settings for Multilple displays to extend