GNOME Keyboard shortcuts won't work if xmodmap is not installed. Here is the code from control-center-2.16.2/gnome-settings-daemon/gnome-settings-multimedia-keys.c static gboolean hookup_keysym (int keycode, const char *keysym) { char *command; if (keycode <= 0) return TRUE; command = g_strdup_printf ("xmodmap -e \"keycode %d = %s\"", keycode, keysym); g_spawn_command_line_sync (command, NULL, NULL, NULL, NULL); g_free (command); return FALSE; } I don't about other versions though, please check for sure.
You're right, thanks. Added.