Tente instalar o pacote de configuração de teclado %código% Em seguida, siga este guia
edit /etc/default/keyboard manually, here's an example:
# KEYBOARD CONFIGURATION FILE
# Consult the keyboard(5) manual page.
XKBMODEL="pc105"
XKBLAYOUT="us,de,fr,ua,ru"
XKBVARIANT=""
XKBOPTIONS="grp:alt_shift_toggle"
BACKSPACE="guess"
XKBMODEL is a keyboard model variable (look at a /usr/share/X11/xkb/rules/base.lst (plain text) or /usr/share/X11/xkb/rules/base.xml (XML) for a full list);
XKBLAYOUT variable contains a list of used layouts;
"grp:alt_shift_toggle" sets a layout switching key combination (+).