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</style><a href="index.html">Index </a>·
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<a href="systemd.directives.html">Directives </a>·
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<a href="../python-systemd/index.html">Python </a>·
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<a href="../libudev/index.html">gudev </a><span style="float:right">systemd 214</span><hr><div class="refentry"><a name="systemd-backlight@.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-backlight@.service, systemd-backlight — Load and save the display backlight brightness at boot and shutdown</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-backlight@.service</code></p><p><code class="filename">/usr/lib/systemd/systemd-backlight</code></p></div><div class="refsect1"><a name="idm214199017552"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="filename">systemd-backlight@.service</code>
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is a service that restores the display backlight
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brightness at early boot and saves it at shutdown. On
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disk, the backlight brightness is stored in
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<code class="filename">/var/lib/systemd/backlight/</code>.</p></div><div class="refsect1"><a name="idm214199014864"></a><h2 id="Kernel Command Line">Kernel Command Line<a class="headerlink" title="Permalink to this headline" href="#Kernel%20Command%20Line">¶</a></h2><p><code class="filename">systemd-backlight</code> understands
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the following kernel command line parameter:</p><div class="variablelist"><dl class="variablelist"><dt id="systemd.restore_state="><span class="term"><code class="varname">systemd.restore_state=</code></span><a class="headerlink" title="Permalink to this term" href="#systemd.restore_state=">¶</a></dt><dd><p>Takes a boolean
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argument. Defaults to
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"<code class="literal">1</code>". If
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"<code class="literal">0</code>", does not restore
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the backlight settings on boot. However,
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settings will still be stored on shutdown.
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</p></dd></dl></div></div><div class="refsect1"><a name="idm214199009280"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
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<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>
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</p></div></div></body></html>
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