0

I use ubuntu linux. I usually have 6hrs of battery life. However I'd like to squeeze in more. I'm afraid to use powertop because I don't know if the tweaks are permanent or last until reboot.

How to make them only temporary?

MyWays
  • 257

1 Answers1

0

There is no way to make powertop settings permanent, but auto-tune might be good enough.

To have it run at boot add to /etc/rc.local (or as in your distribution), an executable script that will be launched on boot, such as:

#!/bin/sh -e
sudo powertop --auto-tune
exit 0

To verify that it launched, reboot and open powertop, go to the "Tunables" tab, and check that all the options are set as "Good".

Some points:

  1. Keep powertop running while the laptop is on battery, as it needs to collect information about your battery and laptop.

  2. When running auto-tune, powertop may give some errors although it worked as intended.

source

harrymc
  • 498,455