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Optimize power consumption while running on battery

Feature state

openSUSE Distribution


Currently, openSUSE 11.3 does not much to preserve my battery while being unplugged. Intel's powertop came up with many good suggestions that cut the power consumption on my laptop in half! It would be quite a good idea to make the powersave profile do a little bit more than just dim the screen and throttle the CPU. Other suggestions:

  • turn bluetooth off, radio is always a battery eater
  • reduce USB polling
  • enlarge write cache
  • ...do other things that reduce wakeups to a minimum

User benefit:

Mobile usage is more and more a key scenario.


powersaving :

maximum performance :

The powersaving script sets all hardware components to save powersaving modes but skips critical settings like USB suspend which could cause trouble.

The max performance script reverts all settings previously made by the powersaving script.

Booth need root privileges!


icons/user_comment.png P. J. wrote: (7 years ago)

Could you be more specific what and how you achieved your power consumption improvement?

icons/user_comment.png A. D. wrote: (7 years ago)

I add my scripts for powersaving and for maximum performance. You could add them to sudoers, because the need root privileges. I did it this way and added them as custom scripts to powerdevil profile config. Works pretty smooth!

Of course you need to adapt the scripts to fit your system (e.g. you won't need the ATI swith if you have not an system with ATI switchable graphics), 4 cores etc.

Last change: 2 years ago
Score: 49
  • Negative: 1
  • Neutral: 1
  • Positive: 50
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