My laptop keyboard doesn't have a right Ctrl key. And I use a different layout than the native layout of my keyboard, so there are some keys that do nothing. So I'm trying to remap one of those keys to use as a right control. I'm doing the following command:
xmodmap -e 'keycode 97=Control_R'.
I also tried with Control_L. But the key do nothing.
Then I tested with Alt key:
xmodmap -e 'keycode 97=Alt_r'
and it works fine.
Why can't I remap the control key?