I have two monitors on my desk in portrait orientation.
One is plugged in with a DVI cable and the other with a VGA (I don't have two DVI cables available) into my Gigabyte Radeon 7750 HD graphics card.
In Arch I installed
xf86-video-ati from the official repository.
When I boot the machine both monitors are recognized and cloned in landscape position.
I generated xorg.conf with
Xorg --configure and file is located at
Inside of my xorg.conf at the end of all of the "ScreenX" sections I have added
Option "RandRRotation" "True"
Now if I run
xrandr --output DVI-1 --right-of VGA-0 the monitors will both be recognized as separate (not cloned displays anymore) and I am able to drag windows across the screens properly. However if I run
xrandr --output DVI-1 --rotate right nothing happens, the same for VGA-0. I have also tried
xrandr -o 1 this turns off all of the screens until I run
xrandr -o 0 which only turns one display (VGA-0) back on.
How can I get the screens to rotate to portrait?