Disable screensaver and lock screen in Ubuntu Mate
I have a few virtual machine deployed on in my home lab, and my general OS of choice is Ubuntu Mate.
Not as barebones basic as XFCE4, and not as resource-intensive as Gnome3 or KDE.
One of the first things I do after rolling out a virtual machine is to disable the screensaver and lock screen on any OS.
On Ubuntu Mate, this can be accomplished with these commands:
gsettings set org.gnome.desktop.session idle-delay 0
gsettings set org.gnome.desktop.screensaver lock-enabled false
You do not need to be root, or use sudo, for these commands.