После недавней установки Lubuntu решил настроит переключение раскладок на свой любимый Caps Lock. Правим /etc/default/keyboard

# Check /usr/share/doc/keyboard-configuration/README.Debian for
# documentation on what to do after having modified this file.
 
# The following variables describe your keyboard and can have the same
# values as the XkbModel, XkbLayout, XkbVariant and XkbOptions options
# in /etc/X11/xorg.conf.
 
XKBMODEL="pc105"
XKBLAYOUT="us,ru"
XKBVARIANT=","
# XKBOPTIONS="grp:alt_shift_toggle,grp_led:scroll"
XKBOPTIONS="grp:caps_toggle,grp_led:scroll"
 
# If you don't want to use the XKB layout on the console, you can
# specify an alternative keymap.  Make sure it will be accessible
# before /usr is mounted.
# KMAP=/etc/console-setup/defkeymap.kmap.gz