How to turn off X autorun?

Question

Debian

There is a debian jessie lightdm + mate
installed sysv-rc-conf , unchecked all the checkboxes opposite lightdm (from the second to the fifth), reboot - the mate log / password entry window,
well, you never know what didn’t work there - update-rc.d -f lightdm remove , reboot, same thing...
UPD:
systemctl disable lightdm
systemctl disable lightdm.service
didn't help either.
UPD2:
Googled the solution:
systemctl set-default multi-user.target
revert back to graphics:
systemctl set-default graphical.target

Answer 1

sudo systemctl disable lightdm

Answer 2

There should be a file /etc/inittab
There should be a line like:
to boot in text mode, you need to set the number 3 instead of 5, save the file, reload.
Should work.

Answer 3

aptitude purge lightdm