This is the key to the right of SPACE, is it not?
Firstly, make sure that it's actually doing something by running xev in the terminal and seeing if the key registers as
Keycode 130 (Hangul). Then check /usr/share/X11/xkb/evdev and make sure that it has the lines
Code:
<HNGL> = 130; // Hangul Latin toggle
<HJCV> = 131; // Hangul to Hanja conversion
Then check that /usr/share/X11/xkb/symbols/kr includes
Code:
partial function_keys
xkb_symbols "hw_keys" {
key <HNGL> { [ Hangul ] };
key <HJCV> { [ Hangul_Hanja ] };
};
If all is as it should be, you need to configure Xfce. Run the configuration editor and go to Keyboard layout. You should have an option
korean:hw_keys — if it's not there, add it.
