How to enable "larger text" scaling slider on a 2k monitor?

by Sébastien   Last Updated June 18, 2018 15:12 PM

I have a Mac Mini connected to two Dell U2515H monitors, which have 2560x1440 resolution.

Problem: everything (macOS UI elements) is too small at this native resolution.

I was able to force "HiDPI" mode, using the command below.

sudo defaults write /Library/Preferences/ DisplayResolutionEnabled -bool true

The result looks nice and sharp, BUT everything is too big when using the 1280x720 HiDPI resolution.

What I need is a scaling in between these 2 options (100% and 200%).

It seems that macOS has this option (several levels of scaling available) on their iMacs and MBPs:

enter image description here

Is there a trick to enable this slider with my monitors?

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Updated October 13, 2017 15:12 PM