Improving Power Management in eOS Freya

One thing missing from Freya out of the box is adequate power management tools. This isn’t a problem if you’re using this agile linux distro on a desktop but can be critical when using Elementary OS on a laptop. Here’s a quick and dirty setup to get you the bare minimum power management on your fresh Freya install.

NOTE: add ppa’s at your own discretion. Alternatively you can simply download the packages.

  1. Install tlp
    sudo add-apt-repository ppa:linrunner/tlp && sudo apt-get update
    sudo apt-get install tlp tlp-rdw
  2. Then install powerTOP
    sudo apt-get install powertop
  3. Calibrate powerTOP (this will take a while and many strange things will happen… walk away)
    sudo powerTOP --calibrate
  4. Reboot.
  5. Check the report with (hint: the powertop.html file will be saved to the root of your home folder)
    sudo powertop --html
  6. Open the powertop.html file and check out the suggestions under the Tuning tab.
  7. You can write the script suggestions to your /etc/rc.local file or if you trust everything that powerTOP says, you can just add the line powertop --auto-tune to /etc/rc.local

With just this most basic of configuration you should be able to squeeze out more juice from your average charge cycle.


Adam Merrifield


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