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I've been trying to migrate my keyboard mapping from xmodmap to xkb, but I'm having some trouble. I can see where to modify the "normal" keys, in /usr/share/X11/xkb/symbol/us for me, but this file seems devoid of "special" keys, including modifiers.

The full remapping that I wish to achieve is:

  • Swap Left Ctrl and Shift
  • Replace Right Ctrl with Shift
  • Replace Right Shift with '
  • Replace ' with /
  • Right blank key (keycode 97) to Menu
  • Left blank key (keycode 92) to AltGr
  • AltGr encodings:
    • keycode 20 = minus underscore minus underscore endash emdash
    • keycode 60 = period greater period greater ellipsis
    • Fn+F5 and Fn+F6 control brightness
    • keycode 148 = XF86MonBrightnessDown NoSymbol XF86MonBrightnessDown
    • keycode 179 = XF86MonBrightnessUp NoSymbol XF86MonBrightnessUp

How can I achieve this?

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Take a look at my answer Here, see if it helps. – Mitch Aug 1 '13 at 17:18
@Mitch I actually did see that already, but as far as I can tell that is to create Xmodmaps? I already have an Xmodmap (which I find much more transparent than xkb), but I'm trying to move to xkb for several reasons: to have specific simultaneous keymaps for multiple keyboards; and to apply this keymap on startup rather than having to reconnect and trigger with a udev rule. – Sparhawk Aug 1 '13 at 22:48
up vote 2 down vote accepted

The solution is to create AltGr encodings in /usr/share/X11/xkb/symbol/us, but swap most keys using /usr/share/X11/xkb/keycodes/evdev instead.

(However, I haven't worked out how to map Fn+F5 and Fn+F6 to XF86MonBrightnessDown and XF86MonBrightnessUp yet.)

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Thanks for following up! – Freedom_Ben Jan 24 '14 at 18:56

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