xorg.conf.d keyboard
% cat /usr/share/X11/xorg.conf.d/keyboard.conf Section "InputClass" Identifier "Keyboard Defaults" MatchIsKeyboard "yes" Option "XkbModel" "jp106" Option "XkbLayout" "jp" Option "XkbOptions" "ctrl:nocaps" EndSection
% cat /usr/share/X11/xorg.conf.d/keyboard.conf Section "InputClass" Identifier "Keyboard Defaults" MatchIsKeyboard "yes" Option "XkbModel" "jp106" Option "XkbLayout" "jp" Option "XkbOptions" "ctrl:nocaps" EndSection