What scaled resolutions are available to use on this monitor?

LG UltraFine 4K Display

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3 Answers from the Community

  • Answer

    The normal resolution options are:


    with "Default for display" being 1920x1080

    However, by holding down the option key when you select the "Scaled" radio button, you then have the following resolutions available:


    which is a lot!

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  • Since I can’t edit my review I thought I would add this here.

    In my review I said I use the native resolution. That is incorrect. I am scaling to 2304X1296 which seems perfect as far as UI, screen real estate and sharpness. I have the LG 24” connected to a 2018 Mac Mini with 32GB of RAM.

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  • The timings supported by the display are listed in the manual which you can download from the LG website.

    Scaled resolutions in MacOS work be scaling a frame buffer to a base resolution. The base resolution is usually the max resolution of the display (3840x2160 in this case). The display only affects the base resolution and the timings.

    The scaled resolution refers to the dimensions of the frame buffer. These are created by the graphics drivers so it depends on the macOS version and the GPU that the display is connected to (Intel, AMD, and Nvidia have different frame buffer max sizes).

    Scaled resolutions can be smaller (1920x1080) or larger (5120x2880) than the base resolution. Scaled resolutions that are larger than a certain size also give a Retina (HiDPI or "Looks like") resolution. For example, a 5120x2880 scaled resolution also gives a 2560x1440 HiDPI resolution. When using a HiDPI resolution, UI elements are drawn twice as high and twice as wide as usual.

    You can see both low resolutions (non-HiDPI) and HiDPI resolutions by holding the Option key and clicking "Scaled" in the Displays preferences.

    You can add scaled resolutions and change the base resolution using a program like SwitchResX.

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