<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="question" id="power-whydim" xml:lang="zh-CN">

  <info>
    <link type="guide" xref="power#saving"/>
    <link type="guide" xref="hardware-problems-graphics"/>

    <revision pkgversion="3.7.1" version="0.2" date="2012-11-16" status="outdated"/>
    <revision pkgversion="3.10" date="2013-10-29" status="review"/>
    <revision pkgversion="3.18" date="2015-09-29" status="final"/>
    <revision pkgversion="3.20" date="2016-06-15" status="final"/>

    <credit type="author">
      <name>GNOME 文档项目</name>
      <email>gnome-doc-list@gnome.org</email>
    </credit>
    <credit type="editor">
      <name>Michael Hill</name>
      <email>mdhillca@gmail.com</email>
    </credit>
    <credit type="editor">
      <name>Ekaterina Gerasimova</name>
      <email>kittykat3756@gmail.com</email>
    </credit>

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

    <desc>The screen will dim when the computer is idle in order 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>为什么我的屏幕过一会就变暗？</title>

  <p>If it is possible to set the brightness of your screen, it will dim when
  the computer is idle in order to save power. When you start using the
  computer again, the screen will brighten.</p>

  <p>To stop the screen from dimming itself:</p>

  <steps>
    <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>Switch <gui>Dim screen when inactive</gui> to <gui>OFF</gui> in the <gui>Power
      Saving</gui> section.</p>
    </item>
  </steps>

</page>