How to expand the resolution options of your Mac monitor

One of the options that monitors that work at retina resolutions have is the possibility to reduce or increase scaling, playing with the resolution and thus adjusting to what seems most appropriate to our needs. Now that I work with a 4K monitor and my Mac mini M1, for example, I have settled with upscaling between 1080p and native 4K resolution.

However, you may want to be more precise in those scaling because you need a very specific resolution or just on a whim. No problem: macOS has a hidden feature that, if activated, gives you more scaling options for your monitor.

Your monitor, your resolution

These are the options that appear when you have a monitor capable of working with retina resolutions: you can use the one you have by default (on a 4K monitor you would use 1080p resolution with scaling), or choose between one of the scaling to adjust to what you prefer . You have five options available:

But there is a trick that expands those options. Select the default resolution of the screen, press ALT and without releasing that key select the ‘Adjusted’ option again. You will see that the options change to a list of concrete resolutions with more alternatives to select:

There is also the option of activate low resolution modes, although that is already reserved for those who want to see the elements of the system at a really large size.

Keep in mind that using these resolutions may not give a completely correct result depending on the monitor you use, so I do not guarantee perfect experiences. If you use an Apple monitor or iMac, it is best to use the native resolution with the retina scale set by default.