Increase battery power/life for Linux Ubuntu laptops. Install Laptop Mode Tools 1.68 Ubuntu 15.04, Ubuntu 14.04 and Derivatives. Laptop Mode Tools is a laptop power saving package for Linux systems.
The Laptop Mode Tools allows you to extend the battery life of your laptop, in several ways. It saves power by spinning down hard drives, and in addition, it allows you to tweak a number of other power-related settings using a simple configuration file.
The core feature of Laptop Mode Tools is that it controls the “laptop mode” feature of the Linux kernel, which prevents disk accesses and allows hard drives to spin down for longer periods of time. In addition, Laptop Mode Tools can tweak things like readahead settings, hard drive power management settings, CPU frequency scaling settings, CPU throttling settings, DPMS settings, terminal blanking settings, and LCD brightness settings. In addition, it can automatically start/stop services based on whether you’re working on battery or on wall power, and it can automatically hibernate your computer when it is low on battery power.
Laptop Mode Tools 1.68 is the latest release. It is mainly focused on integration with the newer init system, systemd. Other notable changes are:
- Fix all instances for BATTERY_LEVEL_POLLING
- Group kill the polling daemon so that its child process get the same signal
- Release the descriptor explicitly
- Add identifier about who’s our parent
- Narrow down our power_supply subsystem event check condition
- Fine tune the .service file
- Enhance lmt-udev to better work with systemd
- Add a timer based polling for LMT. It is the equivalent of battery-polling-daemon, using systemd
- Disable battery level polling by default, because most systems will have systemd running
Install Laptop Mode Tools 1.68 on Ubuntu, Via PPA
The latest version of the Laptop Mode Tools can be installed on Ubuntu 15.04, Ubuntu 14.04, Ubuntu 13.04, Ubuntu 12.04 and others. Open Terminal and run the following commands to install Laptop Mode Tools 1.68 via PPA:
$ sudo add-apt-repository ppa:ubuntuhandbook1/apps
$ sudo apt-get update
$ sudo apt-get install laptop-mode-tools
If you wish to uninstall and remove the Laptop Mode Tools 1.68 from Ubuntu Systems, run the command given below:
$ sudo apt-get remove laptop-mode-tools