Mac OS X supports numerous screen resolutions and sizes. Every laptop and/or desktop can have a slightly different resolution. Even though a screen or monitor has a default or maximum resolution, the user can choose any resolution from that size or smaller.

While some believe that a lower resolution makes the icons and text “bigger,” the sizes for icons and text can be adjusted simply by pressing the Command + or Commmand – to increase or decrease their size. The user interface, icons and text will be clearer when viewed at the highest supported resolution for your monitor.

To change the resolution of your computer and monitor, click on System Preferences, found in the Dock or Applications folder.

1 Preferences

Under the Hardware heading of System Preferences, click on the Displays icon.

2 Displays

Here you will see a list of all the supported resolutions for your monitor or screen. You can also adjust brightness settings in this window as well. Scroll to the very bottom of the list and view the highest supported resolution for your Mac.

If you’re able to view the highest resolution without strain or discomfort on your eyes, choose it. Otherwise, choose a resolution close to the highest on your list. You will also see certain resolutions with the word (Stretched) next to them. That means your screen does not natively support that resolution and objects will appear distorted when using it.

3 Choose Resolution

If you’re having trouble deciding what resolution is right for your Mac, click on the Detect Displays Button. This will automatically adjust the screen resolution for you.

4 Detect Displays