Windows – How to disable the screen lock in Windows 7

ps x | grep xscreensaver will tell you if the screensaver is running. Just running xscreensaver in a terminal is enough to start it up, if not. The configuration which sets timeout and locking behavior etc. should be customized in $HOME/.xscreensaver

An alternate locking program is xlock.

Just to be clear: xscreensaver should be constantly running if you want your session to auto-lock - it is the program that detects that you have been idle, locks the screen, and displays the screensaver.

In the tray, rightclick the battery and choose power options.

Choose your active plan by clicking the "Change plan settings" and then either adjust the slides there or click "Change advance power settings".

The third choice from the bottom will give you additional options when it comes to setting the screen brightness.

Hope that helps.