Right click Desktop, then click Applications, Preferences, aRandR

Arrange your screens in the order you want by dragging them around.

Click Layout, Save As

Type the name of your file containting this setup, I chose DualDisplay then click Open. (file will be saved in a hidden directory called .screenlayout)

Close aRandR

Open a File Manager and Show hidden files

Locate .xinitrc-custom file (found in your home directory)

Right click .xinitrc-custom, then left click Open as Text

Add the following at the end of the text already there on its own line:
~/.screenlayout/DualDisplay.sh <-- (use thename you created and do not forget the .sh after the name)

Click File then Save, then Close program.

Logout then login again to autostart your Display Setup.

Good Luck __{{emoticon}}__

tags: mutiple display displays monitor monitors screen setup arandr xrandr xinitrc