1 | <?xml version="1.0" encoding="UTF-8"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!-- Place this in the packages.ent file
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8 | <!ENTITY power-profiles-daemon-version "">
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9 | -->
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10 |
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11 | <!ENTITY power-profiles-daemon-download-http "https://gitlab.freedesktop.org/upower/power-profiles-daemon/-/archive/&power-profiles-daemon-version;/power-profiles-daemon-&power-profiles-daemon-version;.tar.gz">
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12 | <!ENTITY power-profiles-daemon-download-ftp " ">
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13 | <!ENTITY power-profiles-daemon-md5sum "aea78f8150e3aaa5bdb6a8f62967d13a">
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14 | <!ENTITY power-profiles-daemon-size "80 KB">
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15 | <!ENTITY power-profiles-daemon-buildsize "1.6 MB">
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16 | <!ENTITY power-profiles-daemon-time "less than 0.1 SBU (with tests)">
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17 | ]>
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18 |
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19 | <sect1 id="power-profiles-daemon" xreflabel="power-profiles-daemon-&power-profiles-daemon-version;">
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20 | <?dbhtml filename="power-profiles-daemon.html"?>
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21 |
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22 |
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23 | <title>Power-profiles-daemon-&power-profiles-daemon-version;</title>
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24 |
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25 | <indexterm zone="power-profiles-daemon">
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26 | <primary sortas="a-Power-profiles-daemon">power-profiles-daemon</primary>
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27 | </indexterm>
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28 |
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29 | <sect2 role="package">
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30 | <title>Introduction to Power-profiles-daemon</title>
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31 |
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32 | <para>
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33 | The <application>Power-profiles-daemon</application> package provides a program
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34 | that allows modification of the system power/behavior state. This is used on
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35 | many laptops and can be used by a Desktop Environment to activate power saving
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36 | or performance CPU governors through dbus. On other systems, Power-profiles-daemon
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37 | can be used as a streamlined way to set the CPU governor in order to increase system
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38 | performance at the cost of energy usage.
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39 | </para>
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40 |
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41 | &lfs122_checked;
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42 |
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43 | <bridgehead renderas="sect3">Package Information</bridgehead>
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44 | <itemizedlist spacing="compact">
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45 | <listitem>
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46 | <para>
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47 | Download (HTTP): <ulink url="&power-profiles-daemon-download-http;"/>
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48 | </para>
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49 | </listitem>
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50 | <listitem>
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51 | <para>
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52 | Download (FTP): <ulink url="&power-profiles-daemon-download-ftp;"/>
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53 | </para>
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54 | </listitem>
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55 | <listitem>
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56 | <para>
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57 | Download MD5 sum: &power-profiles-daemon-md5sum;
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58 | </para>
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59 | </listitem>
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60 | <listitem>
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61 | <para>
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62 | Download size: &power-profiles-daemon-size;
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63 | </para>
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64 | </listitem>
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65 | <listitem>
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66 | <para>
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67 | Estimated disk space required: &power-profiles-daemon-buildsize;
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68 | </para>
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69 | </listitem>
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70 | <listitem>
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71 | <para>
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72 | Estimated build time: &power-profiles-daemon-time;
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73 | </para>
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74 | </listitem>
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75 | </itemizedlist>
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76 |
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77 | <bridgehead renderas="sect3">Power-profiles-daemon Dependencies</bridgehead>
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78 |
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79 | <bridgehead renderas="sect4">Required</bridgehead>
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80 | <para role="required">
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81 | <xref linkend="polkit"/>,
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82 | <xref linkend="pygobject3"/>
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83 | (pycairo is <emphasis role="bold">not</emphasis> needed), and
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84 | <xref linkend="upower"/>
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85 | </para>
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86 |
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87 | <bridgehead renderas="sect4">Optional</bridgehead>
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88 | <para role="optional">
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89 | <xref linkend="gtk-doc"/>,
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90 | The rest are for the tests,
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91 | <xref linkend="python-dbusmock"/>,
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92 | <xref linkend="umockdev"/>,
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93 | <ulink url="https://github.com/PyCQA/isort">isort</ulink>, and
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94 | <ulink url="https://github.com/PyCQA/mccabe">mccabe</ulink>
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95 | </para>
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96 | </sect2>
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97 |
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98 | <sect2 role="kernel" id="power-profiles-daemon-kernel">
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99 | <title>Kernel Configuration</title>
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100 |
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101 | <para>
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102 | Enable the following options in the kernel configuration and recompile the
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103 | kernel if necessary:
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104 | </para>
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105 |
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106 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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107 | href="power-profiles-daemon-kernel.xml"/>
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108 |
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109 | <para>
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110 | Select the appropriate sub-options that appear when the above options are
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111 | selected. As much as possible, the layout should be the same as in
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112 | kernel configuration menus.
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113 | </para>
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114 |
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115 | <indexterm zone="power-profiles-daemon power-profiles-daemon-kernel">
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116 | <primary sortas="d-Power-profiles-daemon">Power-profiles-daemon</primary>
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117 | </indexterm>
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118 | </sect2>
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119 |
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120 | <sect2 role="installation">
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121 | <title>Installation of Power-profiles-daemon</title>
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122 |
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123 | <para>
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124 | Install <application>Power-profiles-daemon</application> by
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125 | running the following commands:
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126 | </para>
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127 | <screen revision="sysv"><userinput>mkdir build &&
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128 | cd build &&
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129 |
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130 | meson setup \
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131 | --prefix=/usr \
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132 | --buildtype=release \
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133 | -D gtk_doc=false \
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134 | -D tests=false \
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135 | -D systemdsystemunitdir=/tmp \
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136 | .. &&
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137 | ninja</userinput></screen>
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138 |
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139 |
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140 | <screen revision="systemd"><userinput>mkdir build &&
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141 | cd build &&
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142 |
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143 | meson setup \
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144 | --prefix=/usr \
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145 | --buildtype=release \
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146 | -D gtk_doc=false \
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147 | -D tests=false \
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148 | .. &&
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149 | ninja</userinput></screen>
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150 |
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151 | <para>
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152 | If you have installed the external dependencies, to test the results issue: <command>
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153 | ninja test</command>.
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154 | </para>
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155 |
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156 | <para>
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157 | Now, as the <systemitem class="username">root</systemitem> user:
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158 | </para>
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159 |
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160 | <screen role="root"><userinput>ninja install</userinput></screen>
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161 |
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162 | <para revision="sysv">
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163 | Now, clean up an unneeded systemd unit installed into /tmp:
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164 | </para>
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165 |
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166 | <screen revision="sysv" role="root">
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167 | <userinput>rm -fv /tmp/power-profiles-daemon.service</userinput>
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168 | </screen>
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169 |
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170 | <para revision="sysv">
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171 | Create a directory required for persistent power states
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172 | after reboot:
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173 | </para>
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174 |
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175 | <screen revision="sysv" role="root">
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176 | <userinput>install -vdm755 /var/lib/power-profiles-daemon</userinput>
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177 | </screen>
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178 |
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179 | </sect2>
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180 |
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181 |
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182 | <sect2 role="commands">
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183 | <title>Command Explanations</title>
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184 |
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185 | <para>
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186 | <parameter>-D gtk_doc=false</parameter>: Prevents building the
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187 | documentation. Remove this if you have <application>GTK-Doc</application>
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188 | installed and wish to build the documentation.
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189 | </para>
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190 |
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191 | <para>
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192 | <parameter>-D tests=false</parameter>: Prevents building the
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193 | tests because they cannot be run within the boundaries of
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194 | BLFS. Remove this if you have installed the external dependencies
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195 | and wish to run the tests.
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196 | </para>
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197 |
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198 | <para revision="sysv">
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199 | <parameter>-D systemdsystemunitdir=/tmp</parameter>: Removes
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200 | the dependency on <application>systemd</application>.
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201 | </para>
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202 |
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203 | </sect2>
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204 |
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205 | <sect2 role="configuration">
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206 | <title>Configuring Power-profiles-daemon</title>
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207 |
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208 | <sect3 id="power-profiles-daemon-init" revision="sysv">
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209 | <title>Boot Script</title>
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210 |
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211 | <para>
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212 | To automatically start the <command>power-profiles-daemon</command> when the
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213 | system is rebooted, install the
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214 | <filename>/etc/rc.d/init.d/power-profiles-daemon</filename> bootscript from the
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215 | <xref linkend="bootscripts" revision="sysv"/> as the
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216 | <systemitem class="username">root</systemitem> user:
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217 | </para>
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218 |
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219 | <indexterm zone="power-profiles-daemon power-profiles-daemon-init">
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220 | <primary sortas="f-Power-profiles-daemon">power-profiles-daemon</primary>
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221 | </indexterm>
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222 |
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223 | <screen role="root"><userinput>make install-power-profiles-daemon</userinput></screen>
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224 | </sect3>
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225 |
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226 |
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227 | <sect3 id="power-profiles-daemon-systemd" revision="systemd">
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228 | <title>Systemd Unit</title>
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229 |
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230 | <para>
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231 | To start the power-profiles-daemon on boot, enable the systemd
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232 | service that was installed by running the following command as the
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233 | <systemitem class="username">root</systemitem> user:
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234 | </para>
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235 |
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236 | <screen role="root"><userinput>systemctl enable power-profiles-daemon</userinput></screen>
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237 | </sect3>
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238 |
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239 | <sect3>
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240 | <title>Select a Power Profile</title>
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241 |
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242 | <para>
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243 | To list all supported power profiles, issue:
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244 | </para>
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245 |
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246 | <screen role="nodump"><userinput>powerprofilesctl</userinput></screen>
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247 |
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248 | <para>
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249 | To activate a power profile (for example
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250 | <replaceable>performance</replaceable>), issue:
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251 | </para>
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252 |
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253 | <screen role="nodump"><userinput>powerprofilesctl set <replaceable>performance</replaceable></userinput></screen>
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254 |
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255 | <para>
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256 | Some desktop environments (for example GNOME and KDE) also provide
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257 | a graphical interface to interact with
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258 | <command>power-profiles-daemon</command> and activate a power
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259 | profile.
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260 | </para>
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261 |
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262 | <para>
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263 | The activated power profile is automatically stored in
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264 | <filename>/var/lib/power-profiles-daemon/state.ini</filename> and
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265 | <command>power-profiles-daemon</command> will read it out and
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266 | activate it again on the next boot if the
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267 | <phrase revision='sysv'>bootscript is
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268 | installed</phrase><phrase revision='systemd'>Systemd
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269 | unit is enabled</phrase> as above.
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270 | </para>
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271 | </sect3>
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272 |
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273 | </sect2>
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274 |
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275 |
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276 |
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277 | <sect2 role="content">
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278 | <title>Contents</title>
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279 |
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280 | <segmentedlist>
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281 | <segtitle>Installed Program</segtitle>
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282 | <segtitle>Installed Libraries</segtitle>
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283 | <segtitle>Installed Directories</segtitle>
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284 |
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285 | <seglistitem>
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286 | <seg>
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287 | powerprofilesctl
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288 | </seg>
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289 | <seg>
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290 | None
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291 | </seg>
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292 | <seg>
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293 | None
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294 | </seg>
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295 | </seglistitem>
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296 | </segmentedlist>
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297 |
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298 | <variablelist>
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299 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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300 | <?dbfo list-presentation="list"?>
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301 | <?dbhtml list-presentation="table"?>
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302 |
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303 | <varlistentry id="powerprofilesctl">
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304 | <term><command>powerprofilesctl</command></term>
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305 | <listitem>
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306 | <para>
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307 | This allows the user to set the power governor of the
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308 | CPU.
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309 | </para>
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310 | <indexterm zone="powerprofilesctl">
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311 | <primary sortas="b-powerprofilesctl">powerprofilesctl</primary>
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312 | </indexterm>
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313 | </listitem>
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314 | </varlistentry>
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315 |
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316 | </variablelist>
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317 | </sect2>
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318 | </sect1>
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