Submitted by MagicFab on Sat, 01/12/2013 - 16:21
Revision of Optimizing battery time from Sat, 01/12/2013 - 16:21
The revisions let you track differences between multiple versions of a post.
The following information can be used with a new Trisquel installation or while using your system to try and optimize battery time. This is mostly useful on laptops.
Tips & tricks
- Suspend the system when not using it;
- Check your power usage statistics with the gnome-power-statistics command
- Set an automatic decrease of the luminosity after some time of inactivity;
- Deactivate the Bluetooth/Wifi when not using it (for a long time). This can sometimes be achieved through a hardware switch;
- Replacing a hard drive by a solid state one should improve battery life as it requires less power;
- Disabling the sound card: this will save around 2W (up to 5% battery life):
- Right-click on the speaker in the task bar and choose "Sound preferences"
- In the "Hardware" tab, click on your sound card, then select the profile "Off"
Useful Packages
- linux-libre (homepage): Upgrade your kernel to latest linux-libre. There are two PPAs making this available (based on a forum discussion about both):
- laptop-mode-tools (homepage) : Tools for Power Savings based on battery/AC status
Laptop mode is automatically enabled after installing this package. Check the ArchLinux extensive documentation about this. - powertop (homepage) - tool to find out what is using power on a laptop
- rovclock - utility to control frequency rates of your Radeon card
Check the Thinkwiki rovclock documentation about this package
