Luigi Pinna wrote:
>     Option "XkbRules"   "xorg"
>     Option "XkbModel"   "pc105"
>     Option "XkbLayout"  "de"

Try this, for the Right Alt key to get you into the level 3 stuff (á, ë,
etc)

Option          "XkbOptions"    "lv3:ralt_switch"

If you want the various keys that can be put there instead of
ralt_switch, run this:

grep xkb_sym /usr/share/X11/xkb/symbols/level3

Thanks,
Donnie