not quite so much needs to be delayed to the init() function
[personal-kdebase.git] / workspace / doc / kcontrol / energy / index.docbook
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1 <?xml version="1.0" ?>
2 <!DOCTYPE article PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN"
3 "dtd/kdex.dtd" [
4 <!ENTITY % addindex "IGNORE">
5 <!ENTITY % English "INCLUDE" > <!-- change language only here -->
6 ]>
8 <article lang="&language;">
9 <articleinfo>
11 <authorgroup>
12 <author>&Mike.McBride; &Mike.McBride.mail;</author>
13 <!-- TRANS:ROLES_OF_TRANSLATORS -->
14 </authorgroup>
16 <date>2002-02-12</date>
17 <releaseinfo>3.00.00</releaseinfo>
19 <keywordset>
20 <keyword>KDE</keyword>
21 <keyword>KControl</keyword>
22 <keyword>energy</keyword>
23 </keywordset>
24 </articleinfo>
26 <sect1 id="energy">
27 <title>Energy</title>
29 <sect2 id="energy-intro">
30 <title>Introduction</title>
32 <para>This module is useful for any computer having a monitor labeled
33 Energy Star Compliant. (Energy Star Compliant equipment is equipment
34 that can be configured to automatically enter a power saving mode when
35 appropriate, without human intervention.)</para>
37 <tip><para>Energy Star Compliance can be applied to nearly any
38 electrical device. This module, however, does not spin down hard
39 drives, does not shutdown printers, &etc; These settings only affect
40 the behavior of your monitor.</para>
42 <para>For information on shutting down components on a laptop, do not
43 use this module. Instead, install kdeutils, and refer to the module
44 entitled <ulink url="help://kcontrol/powerctrl/index.html">Laptop
45 Power Control Center</ulink>, for details.</para></tip>
47 <para>In the case of computer monitors, the computer can control the
48 monitor, switching it between four states: On, Standby, Suspend, and
49 Off.</para>
51 <note><para>The following list of states is a generalization, and you
52 may find that your monitor will differ from the descriptions
53 below.</para></note>
55 <para><quote>ON</quote> is the normal operation of your monitor while you are using
56 it.</para>
58 <para><quote>STANDBY</quote> is usually a minor power saving level.
59 This setting usually involves blanking the screen, and not firing the
60 electron gun, but keeping the electron gun <quote>energized</quote>
61 and ready to go. When you need to use the monitor again, the monitor
62 will come back on very quickly.</para>
64 <para><quote>SUSPEND</quote> is a very low power mode alternative.
65 With most monitors the screen is blanked, the electron
66 gun is shut down and the magnets that control the electron gun are
67 powered down. While the power saving is substantial, to reactivate
68 the monitor may take up to 10-15 seconds. The computer should always
69 be able to return the monitor to On or Standby while in suspend
70 mode.</para>
72 <para><quote>OFF</quote>, usually means just that. The computer
73 monitor is turned off. This usually means that the computer will not
74 be able to turn the monitor back on by itself. Obviously, this keeps
75 power consumption to a bare minimum (zero).</para>
77 </sect2>
78 <sect2 id="energy-use">
79 <title>Use</title>
81 <para>Using this module is very simple:</para>
83 <para>If your monitor is Energy Star Compliant, then you should put a
84 mark in the check box labeled <guilabel>Enable Display Energy
85 Saving</guilabel>. This will activate the energy saving
86 commands. </para>
88 <para>The next three slider bars, tell the computer how many minutes of
89 inactivity before automatically switching to a new state. These numbers
90 can be adjusted with either the sliders, or the spin boxes.</para>
92 <note><para>These times are not additive, but all start counting at
93 zero.</para>
95 <para>As an example:</para>
97 <para>If you set the Standby Mode to 10 minutes, the Suspend mode to 20
98 minutes, and the Power off at 30 minutes, and you stop using your
99 computer at 9:00, then the monitor will:</para> <para>Enter Standby mode
100 at 9:10, enter Suspend mode at 9:20, and shut the power off at
101 9:30.</para></note>
103 <para>When you are happy with the settings, click
104 <guibutton>OK</guibutton>.</para>
106 </sect2>
108 </sect1>
110 </article>