Laptop Mode Tools, a Linux power-saving package, gets an update recently with many important bug-fixes. All users are recommended to upgrade to the new release.
Laptop Mode Tools controls the “laptop mode” feature of the Linux kernel. It saves power by spinning down hard drives, and in addition, it can be configured to tweak all sorts of other power-related things.
Version 1.67 was released 10 months after the last 1.66 release, which brings more reliably check for Device Mapper based devices, which is common these days with Crypt and LVM. See changes:
- Relax minimum window size to accomodate low res screens
- Fix variable name to comply with our “constants” assuptions
- Get more aggressive in power saving for Intel HD Audio
- Account Device Mapper devices
- Add swsusp freeze support
- Switch battery-level-polling default to True
- Detect ethernet carrier, early and relibaly
- changes the boolean setting *_ACTIVATE_SATA_POWER to a customizable *_SATA_POLICY, with backward-compatible defaults and documentation
How to Install Laptop Mode Tools 1.67:
NOTE: Laptop Mode Tools conflicts with TLP (they are doing the same thing). You have to remove TLP if installed before installing this software!
Open terminal from the Dash, Launcher, or by pressing Ctrl+Alt+T on keyboard. When it opens, run below commands one by one to install it in Ubuntu 15.04, Ubuntu 14.04, Mint 17, or Freya from PPA:
sudo add-apt-repository ppa:ubuntuhandbook1/apps sudo apt-get update sudo apt-get install laptop-mode-tools
For those who don’t want to add PPA, grab the .deb installer from this page.
After installation, start the graphical configuration interface via command:
You’ll see the window in above picture after typing your password.
For the source tarball, go to this page.