disable screensaver from command line

[Florin Andrei]

I'm running XFCE 4.12 on Ubuntu 16.04. It's an unattended installation, 
fully automated via Ansible. The desktops are running under VNC and each 
user connects remotely via VPN. All vncserver services are running all 
the time for all users (it's simpler this way).

After a while, screensavers kick in for all accounts, wasting CPU 
cycles. I can't ask users to disable their screensaver manually because 
the instance may be destroyed / recreated any time, losing any manual 
changes.

Is there a way to disable the screensaver from the command line? If so, 
I could run that command (or set of commands) while the instance is 
provisioned with Ansible, disabling the screensaver for all accounts.

-- 
Florin Andrei
http://florin.myip.org/