Disable default Ctrl-Alt-Fx key bindings

Edit

alt binding ctrl key srvrkeys x11 xorg xsession

cat <<"EOF" | sudo tee /etc/X11/Xsession.d/65srvrkeys-none
# Disable default Ctrl-Alt-Fx key bindings
if [ -x /usr/bin/setxkbmap ]; then
	/usr/bin/setxkbmap -option srvrkeys:none
fi