Current File : //usr/share/help/C/system-admin-guide/power-dim-screen.page
<page xmlns="http://projectmallard.org/1.0/"
xmlns:its="http://www.w3.org/2005/11/its"
type="topic" style="task"
id="power-dim-screen">
<info>
<link type="guide" xref="user-settings" />
<link type="seealso" xref="dconf-profiles" />
<link type="seealso" xref="dconf-lockdown" />
<revision pkgversion="3.12" date="2014-06-20" status="candidate"/>
<credit type="author copyright">
<name>Matthias Clasen</name>
<email>matthias.clasen@gmail.com</email>
<years>2012</years>
</credit>
<credit type="editor">
<name>Jana Svarova</name>
<email>jana.svarova@gmail.com</email>
<years>2013</years>
</credit>
<credit type="editor">
<name>Petr Kovar</name>
<email>pknbe@volny.cz</email>
<years>2014</years>
</credit>
<credit type="editor">
<name>Ekaterina Gerasimova</name>
<email>kittykat3756@gmail.com</email>
<years>2014</years>
</credit>
<desc>Make the screen dim after a specific amount of time when the user is
idle.</desc>
</info>
<title>Dim screen when user is idle</title>
<p>You can make the computer screen dim after the computer has been idle (not
used) for some period of time.</p>
<steps>
<title>Dim screen on idle computer</title>
<include href="dconf-snippets.xml"
xpointer="xpointer(/*/*[@xml:id='dconf-profile-user'])"
xmlns="http://www.w3.org/2001/XInclude"/>
<include href="dconf-snippets.xml"
xpointer="xpointer(/*/*[@xml:id='dconf-profile-user-dir'])"
xmlns="http://www.w3.org/2001/XInclude"/>
<item>
<p>Create the key file
<file>/etc/dconf/db/local.d/00-power</file> to provide
information for the <sys>local</sys> database.</p>
<listing>
<title><file>/etc/dconf/db/local.d/00-power</file></title>
<code>
# Specify the dconf path
[org/gnome/settings-daemon/plugins/power]
# Enable screen dimming
idle-dim=true
# Set brightness after dimming
idle-brightness=30
</code>
</listing>
</item>
<item>
<p>Create the key file
<file>/etc/dconf/db/local.d/00-session</file> to provide
information for the <sys>local</sys> database.</p>
<listing>
<title><file>/etc/dconf/db/local.d/00-session</file></title>
<code>
# Specify the dconf path
[org/gnome/desktop/session]
# The number of seconds of inactivity before the session is considered idle
idle-delay=uint32 300
</code>
</listing>
<p>You must include the <code>uint32</code> along with the
integer key values as shown.</p>
</item>
<item>
<p>To prevent the user from overriding these settings, create the file
<file>/etc/dconf/db/local.d/locks/power-saving</file> with the following
content:</p>
<listing>
<title><file>/etc/dconf/db/local.d/locks/power-saving</file></title>
<code>
# Lock screen dimming and idle timeout
/org/gnome/settings-daemon/plugins/power/idle-dim
/org/gnome/settings-daemon/plugins/power/idle-brightness
/org/gnome/desktop/session/idle-delay
</code>
</listing>
<p>If you want to let the user change these settings, skip this step.</p>
</item>
<include href="dconf-snippets.xml"
xpointer="xpointer(/*/*[@xml:id='dconf-update'])"
xmlns="http://www.w3.org/2001/XInclude"/>
<include href="dconf-snippets.xml"
xpointer="xpointer(/*/*[@xml:id='dconf-logoutin'])"
xmlns="http://www.w3.org/2001/XInclude"/>
</steps>
</page>
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