#### Beyond Linux® From Scratch (systemd Edition) - Version r13.0-491

### Chapter 35. Xfce Desktop

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# xfce4-power-manager-4.20.0

## Introduction to Xfce4 Power Manager

The Xfce4 Power Manager is a power manager for the Xfce desktop, Xfce power manager manages the power sources on the computer and the devices that can be controlled to reduce their power consumption (such as LCD brightness level or monitor sleep). In addition, Xfce4 Power Manager provides a set of freedesktop-compliant DBus interfaces to inform other applications about current power level so that they can adjust their power consumption.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

### Package Information

- Download (HTTP): https://archive.xfce.org/src/xfce/xfce4-power-manager/4.20/xfce4-power-manager-4.20.0.tar.bz2

- Download MD5 sum: a9e27be5dafea884fb9fbbb918062963

- Download size: 1.5 MB

- Estimated disk space required: 19 MB

- Estimated build time: 0.1 SBU

### Xfce4 Power Manager Dependencies

#### Required

libnotify-0.8.8, UPower-1.91.2, and xfce4-panel-4.20.7

#### Recommended

Polkit-127 (required for laptop backlight control)

#### Optional

NetworkManager-1.56.0

## Installation of Xfce4 Power Manager

Install Xfce4 Power Manager by running the following commands:

    ./configure --prefix=/usr --sysconfdir=/etc &&
    make

This package does not come with a test suite.

Now, as the `root` user:

    make install

## Contents

Installed Programs: xfce4-power-manager, xfce4-power-manager-settings, xfce4-pm-helper, and xfpm-power-backlight-helper
Installed Libraries: libxfce4powermanager.so
Installed Directories: None

### Short Descriptions

xfce4-pm-helper | is a helper program for the suspend and hibernate functions of xfce4-power-manager
xfce4-power-manager | is the Xfce Power Manager
xfce4-power-manager-settings | is a utility that comes with the Xfce Power Manager to access/change its configuration
xfpm-power-backlight-helper | is a command line utility to get or set the brightness of your screen

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