Keyboard Layout – How to Swap Escape and Caps Lock in Ubuntu 14.04?

First You can search for replacements keycodes in your case via following command in terminal:

$ xmodmap -pke | grep Caps
keycode  66 = Caps_Lock NoSymbol Caps_Lock

$ xmodmap -pke | grep Enter
keycode 104 = KP_Enter NoSymbol KP_Enter

You can get all keycodes according to keys by command xmodmap -pke.

So, Run following command (to get Caps-Lock Work as Enter Key):

xmodmap -e "keycode 66 = KP_Enter"

(Then you can set/assign suitable key to keycode by command xmodmap -e)

Starting from Ubuntu 13.10, Unity/Gnome moved the keyboard layout changing control from X server to higher level tool: unity-settings-daemon/gnome-settings-daemon plugin to add support for multiple X input methods. So the layout change function in X is just disabled.

Same for Caps key, X interprets it as capital lock. When you assign it to layout changing in Unity settings. It will do both as X is not aware of that. So you have to disable caps function in X.

• The workaround explained in bug report mentioned by Alex.O seem to do that. Which is the same as running:

  gsettings set org.gnome.desktop.input-sources xkb-options "['caps:none']"
  

  caps:none means Caps Lock is disabled, to see all Caps key X supported functions, try:

  more /usr/share/X11/xkb/rules/xorg.lst | grep caps
  

• To get default function back:

  gsettings reset org.gnome.desktop.input-sources xkb-options