Missing scaled resolution for external 4K display on MacBook 2016 I'm running my MacBook 2016 attached to LG 27MU67-B operating fine in native 4K resolution. But the choices for scaled (DPI)resolution are somewhat broken.

In display preferences pane I'm presented scaled resolution setting choices as follows:


3840 x 2160
1920 x 1080
1680 x 945
and more useless resolutions.


I'm currently forced to use 1920x1080 which results on a ridiculously zoomed in UI. The highest resolution is native resolution which is a bit too small to work with. With a MacBookPro 2012 I get a 2400-something resolution, which is not available on the MacBook. Is this limit imposed by the MacBook hardware ? Or is it possible to activate more higher resolutions than 1920x1080 but lower than 3840 x 2160 with a defaults write trick ?

This is a screenshot of my currently possible settings:
Select the highest resolution and then alt-click the Scaled radio-button. You can then select scaling of the UI: