How To Change Screen Settings In Ubuntu 12.04 LTS ‘Precise Pangolin’

Changing screen lock settings in Ubuntu 12.04 LTS
When the system is inactive, the screen gets locked and gets turned off in Ubuntu 12.04 LTS after 10 minutes by default. To change this : 1. Select the gear icon (System settings) from the sidebar. 2. Under “Personal” section, click on “Brightness and lock” icon. 3. Change the time period for “Turn screen off when inactive for” to any suitable interval as desired....