Disable HiDPI resolution My macOS High Sierra install keeps switching to 720p HiDPI in stead of running at the native 1440p.

When I click on the 1440p setting it shows me the correct res but it switches back after about 1 second.
When I reboot my Mac I also log in with the correct res but it changes to HiDPI after ~5 seconds.

The monitor is from Asus, 27" 2560x1440.

I tried changing the res with SwitchResX and jhford's screenresolution utility.
I found a way to disable this behaviour through the this command:

sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool NO