<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="topic" style="task" id="display-blank" xml:lang="zh-CN">

  <info>
    <link type="guide" xref="prefs-display"/>
    <link type="guide" xref="hardware-problems-graphics"/>
     <link type="guide" xref="power#battery"/>
    <link type="seealso" xref="power-whydim"/>
    <link type="seealso" xref="session-screenlocks"/>

    <revision pkgversion="3.18" date="2015-09-30" status="candidate"/>

    <credit type="author editor">
      <name>Petr Kovar</name>
      <email>pknbe@volny.cz</email>
    </credit>

    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>

    <desc>Change the screen blanking time to save power.</desc>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>TeliuTe</mal:name>
      <mal:email>teliute@163.com</mal:email>
      <mal:years>2011, 2012</mal:years>
    </mal:credit>
  </info>

  <title>Set screen blanking time</title>

  <p>To save power, you can adjust the time before the screen blanks when left
  idle. You can also disable the blanking completely.</p>

  <steps>
    <title>To set the screen blanking time:</title>
    <item>
      <p>Open the <gui xref="shell-introduction#activities">Activities</gui>
      overview and start typing <gui>Power</gui>.</p>
    </item>
    <item>
      <p>Click <gui>Power</gui> to open the panel.</p>
    </item>
    <item>
      <p>Use the <gui>Blank screen</gui> drop-down list under <gui>Power
      Saving</gui> to set the blank screen time, or disable the blanking
      completely.</p>
    </item>
  </steps>
  
  <note style="tip">
    <p>When your computer is left idle, the screen will automatically lock
    itself for security reasons. To change this behavior, see
    <link xref="session-screenlocks"/>.</p>
  </note>

</page>
