[SOLVED] How to disable blank screen?

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http://ubuntuforums.org – Greetings all: I have the following environment: - Ubuntu 12.04 with Unity I've installed XScreenSaver, then removed it using Synaptic Manager, whenever the computer is idle for 10min, the screen went blank, after searching web, I took the following steps: - System Settings > Power > Suspend when inactive for set to Don't suspend - System Settings > Brightness and Lock > Turn screen off when inactive for set to Never but still it showed blank screen after 10min - in terminal, issued the following command Code: gsettings set org.gnome.desktop.screensaver idle-activation-enabled (Hardware)