How to replace Alt gr with Alt R?

Question

My latin-american keyboard comes with Alt Gr key (ISO_Level3_Shift), but it is useless for my work, so I would like to replace it with Alt R at the lowest level possible. I've tried in xmodmap with:

keysym ISO_Level3_Shift = Alt_R

but it doesn't work (xev still reports ISO_Level3_Shift).

How can I kill for good Alt GR?

Answer 1

Using the keycode instead of the keysym should work. You can also find it in the xev output. For me it's:

xmodmap -e "keycode 108 = Alt_R Meta_R Alt_R Meta_R"