Ubuntu 16.04 Stop X Server - Kill X
And Kill the Display Manager.
sudo service lightdm stop
Or:
sudo service gdm stop
But if you have a Custom display manager then look for the command to Stop it…
Finally, Go to Runlevel 3.
sudo init 3
$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }