kamikaze said:You actually have to change /etc/ttys (deactivate kdm there). Then you run kill -HUP 1 to make the init process reread the file. Afterwards you can terminate X and it won't start up. If you want to start kdm again you have to change /etc/ttys back and run kill -HUP 1 again.
Only way is to kill Xorg and then trying to kldunload nvidia.ko.
But it is waste of time, if you want to suspend with Xorg do not use nvidia blob.