Can somebody help me understand the NVIDIA X Server Settings output?

Hi,

I have this Dell Monitor plugged into my laptop, which also has a built-in 4k display which I have set to 1920x1080 resolution because the gosh darn fractional scaling does not work on Ubuntu.

For some reason my X Server Settings Output looks like this:

Why does it show that the Dimensions and DPI are wrong (they are actually 3840x2160 and 163 as shown in earlier link).

Trying to figure this out.

Thanks for the help