Air Player rotate screen 90, 180 etc

[bmcmullan]

Needed to rotate my display 180 degrees since it's mounted upside down in my setup

Connect to PI via SSH

edit the config file by typing
sudo nano /boot/config.txt

config file will be displayed, scroll to bottom with arrow keys
then type on new line
display_rotate=2

2 = 180 degree rotation, see the link below for additional options

Save the change by pressing Ctrl-X then Y

Reboot your pi from cmd line with
sudo reboot

From https://www.raspberrypi.org/forums/view ... p?t=120793