TLDR
Enter a command. For example: resize2fs, uprecords, ncal, dpkg.

xset

 
User preference utility for X. More information: https://manned.org/xset.
 
  • Disable the screensaver:
     
    xset s off
     
  • Set the screensaver to start after 60 minutes of inactivity:
     
    xset s 3600 3600
     
  • Disable DPMS (Energy Star) features:
     
    xset -dpms
     
  • Enable DPMS (Energy Star) features:
     
    xset +dpms
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