Try: Create /etc/X11/xorg.conf.d/90-keyboard-layout.conf file with content:
Code:
Section "InputClass"
Identifier "keyboard-all"
MatchIsKeyboard "on"
MatchDevicePath "/dev/input/event*"
Driver "evdev"
Option "XkbLayout" "dk"
Option "XkbModel" "pc105"
Option "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection