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There are various cases in which you will need to rotate the display output of your Raspberry Pi.
The ability to rotate the screen output is useful is when you are using a monitor vertically, or the display is mounted upside down.
Needing to rotate the screen output of your Raspberry Pi is a task often required when dealing with cases for the official Raspberry Pi touchscreen.
Using these steps, you will be able to rotate your screen by 90 degrees, 180 degrees, and 270 degrees.
These few steps are relatively straightforward and can be completed in just a couple of minutes.