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I am running Ubuntu 16.04 in a VirtualBox on Microsoft Surface Pro (2017). Unfortunately that keyboard doesn't have a right control key, but just a menu key on the right. That's why I want to swap the menu key for right control key.

I tried to edit /usr/share/X11/xkb/symbols/altwin by changing this

// Menu is mapped to the Menu key.
partial modifier_keys
xkb_symbols "menu" {
    key  { [ Menu ] };
};

to that

// Menu is mapped to the Menu key.
partial modifier_keys
xkb_symbols "menu" {
    key  { [ Control_R ] };
};

and then logged in again, but unfortunately it does not work.

How is this done correctly?

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  • 1
    Command in your case is probably: setxkbmap -option ctrl:menu_rctrl (the linked question provides guidance on how you can make the change persistent). – Gunnar Hjalmarsson Sep 17 '17 at 11:29
  • 1
    If it was for changing the Virtual Box HOST-key see: askubuntu.com/questions/854116/… – Takkat Sep 17 '17 at 14:14