How to Disable Screensaver/Lock Screen/Sleep Mode in Ubuntu?

This tutorial will teach you how to temporarily prevent your computer from activating the screensaver and/or the "sleep" power saving feature of Ubuntu.

Open your terminal and type the following commands:

Adding the caffeine repository:

sudo add-apt-repository ppa:caffeine-developers/ppa

Updating your Ubuntu System:

sudo apt-get update

Install Caffeine:

sudo apt-get install caffeine python-glade2

This will install the caffeine program in your Ubuntu system. It will allow you to enable or disable the screensaver / sleep mode function of Ubuntu.