Change keyboard layouts Debian 8 (Gnome 3)

Para cambiar las distribuciones del teclado a diferentes configuraciones usando alt+shift

en http://wiki.lxde.org/en/Change_keyboard_layouts encontre lo sigiente:

Hotkey solution using setxkbmap

Just put this command into your ~/.bashrc file:

setxkbmap -option grp:switch,grp:alt_shift_toggle,grp_led:scroll de,tr,us

Comments:

• alt_shift_toggle can be replaced by another key combination.
• grp_led:scroll is optional. Using it will turn on the scroll lock light if another layout than the first specified is active.
• de,tr,us can be any comma-separated list of keyboard layouts. In this case German, Turkish, and US English layout.

Execute setxkbmap -option to reset these settings.

Probe en la consola lo siguiente

setxkbmap -option grp:switch,grp:alt_shift_toggle, us,ru,latam

si funciono.
Entonces editar como superusuario:

carpeta: /etc/default/
archivo: keyboard
quedo asi:
XKBLAYOUT=us,ru,latam
XKBVARIANT=,phonetic,
XKBOPTIONS="grp:switch, grp:alt_shift_toggle"
BACKSPACE=guess

reinicie.
es todo