I just installed a fresh Ubuntu 12.04 (Precise Pangolin).

I noticed that, there is no screensaver settings, which is fine. I like to control the period of time after which the blank screen is shown,which automatically locks the screen.

I do not want to enable screensaver. I only wish to be able to change the idle time period required to lock the screen automatically. It seems to me, it is by default around 10-15 minutes.

3 Answers 3


Hi yes this is in the System Setting -> Brightness and Lock

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Then you can change the amount of time to turn the screen off.

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  • Also ... other Linux variations have this under screen saver settings.
    – adrianTNT
    Feb 26, 2015 at 17:29
  • do you know where to find this setting in Xubuntu?
    – becko
    Apr 27, 2016 at 19:12

system setting ---workspace -->desktop behavior--Screen Locking

I have solved my problem using in KDE desktop. Please try this


Settings -> Power -> Power Saving

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