TLP implements advanced power management for Linux. It is a command line tool with automated background tasks, does not contain a GUI. Remove any power saving settings/scripts (e.g.: in /etc/rc.local), and uninstall laptop-mode-tools prior installing or TLP may not work properly. See README.SLACKWARE for more information about post-installation script. An additional configuration is available for Thinkpads. See the website for more details: http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html