subhadeepjasu / elementary-power-manager-daemon

A smart power management system for elementary OS

Power Manager Daemon

Building and Installation

You will need the folowing dependencies:

• glib-2.0
• gobject-2.0
• meson
• valac

Run meson build to configure the build environment. Change to the build directory and run ninja to build

meson build --prefix=/usr
cd build
ninja

To install, use ninja install, then execute with io.elementary.power-manager-daemon

ninja install
sudo io.elementary.power-manager-daemon

Usage

• The daemon requires root priviledges to manage CPU frequencies at kernel level. Hence, its run as a systemd service as root.
• The daemon provides an user facing gsettings schema to control the management mode.
• There's three management modes available:
  • 0: Power Saver
  • 1: Automatic
  • 2: High Performance
• The daemon does not set fixed min or max frequencies for the CPU even if the CPU driver provides them. It merely sets a cpufreq governor mode and a suggestive turbo mode if turbo is available.
• In any mode ("Power Saving" or "High Performance"), the daemon scales governor and/or turbo to a degree based on average system load.
• In "Automatic" mode, in addition to aforementioned scaling, the daemon uses battery sensor data to determine the mode automatically.