I had some trouble to get my Swedish keyboard to work with the altGr-button 
in X11. 

I finely solved the issue and just wanted to share my solution.

created the dir and file:

cd /etc/X11; mkdir xorg.conf.d

cd xorg.conf.d; >30-keyboard.conf


edit the file and put the following in it:


Section "InputClass"

Identifier "Keyboard Defaults"

MatchIsKeyboard "on"

Option "XkbLayout" "se"

Option "XkbModel" "pc105"

EndSection


thanks fore an awesome dist. <3