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218</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=
"idm140102205163072"></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>
23 is a service that restores the display backlight
24 brightness at early boot and saves it at shutdown. On
25 disk, the backlight brightness is stored in
26 <code class=
"filename">/var/lib/systemd/backlight/
</code>.
</p></div><div class=
"refsect1"><a name=
"idm140102205160384"></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
27 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
29 "<code class="literal
">1</code>". If
30 "<code class="literal
">0</code>", does not restore
31 the backlight settings on boot. However,
32 settings will still be stored on shutdown.
33 </p></dd></dl></div></div><div class=
"refsect1"><a name=
"idm140102205144544"></a><h2 id=
"See Also">See Also
<a class=
"headerlink" title=
"Permalink to this headline" href=
"#See%20Also">¶
</a></h2><p>
34 <a href=
"systemd.html"><span class=
"citerefentry"><span class=
"refentrytitle">systemd
</span>(
1)
</span></a>
35 </p></div></div></body></html>