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If you flip the screen vertically, you’ll notice that the mouse is flipped as well (essentially it’s inverted), this is pretty confusing at first and it definitely makes for a good prank to play on someone. Prior versions of Mac OS X like Snow Leopard, Mountain Lion, and Lion have the rotating functionality but without some of the scaling and refresh options, shown here: This allows users to configure secondary monitors to run in the vertical position (portrait mode), rather than the default horizontal (landscape mode) that screens are typically shown with.
If you have an external display attached to your Mac, you will have noticed that you can adjust the screen orientation on the external display by using the Display System Preference unique to that screen.
270° – flips the display and also rotates it into a vertical position. 180° – this essentially flips the ‘standard’ display option upside down. 90° – rotates the screen onto it’s side into a vertical layout, likely the most desirable and useful setting for those looking to use a sideways display. Standard – this is the default setting of all Mac displays, with the screen in a standard horizontal orientation as intended by factory settings. Pulling down the menu reveals the four Display Rotation options available to Macs, indicated by their degree of rotation as follows: There are options beyond the popular standard and sideways layouts for both built-in and external screens. Additional Display Rotation Options for Macs Mac OS X Mavericks and later reveals a few additional options alongside the “Rotation” menu, as do displays that are Retina compatible. Close out of System Preferences to have the settings stay in effectĭepending on the version of Mac OS, things may look slightly differently in the Displays settings panel.
Set the rotation you want, in this case it’s likely to rotate 90° for the display to be into a vertical page layout orientation on its side. On the right side of the Display preferences, look for the newly visible ‘Rotation’ drop down menu. Hold down the Command+Option keys and click on the “Display” icon. Launch System Preferences from the Apple menu. Here’s how to access the screen rotation option in all versions of Mac OS X: How to Rotate the Mac Screen Orientation into a Vertical Layout