\etc\x11\xorg.conf :
Option "XkbVariant" ",winkeys"
и все как в винде.
полностью секция у меня :
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us,ru"
Option "XkbVariant" ",winkeys"
Option "XkbOptions" "grp:ctrl_shift_toggle,lv3:ralt_switch,grp_led:
EndSection