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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 2<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/power-management-guide.xml,v 1.31 2007/10/03 17:27:58 nightmorph Exp $ --> 3<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/power-management-guide.xml,v 1.32 2007/12/03 19:31:10 swift Exp $ -->
4<guide link="/doc/en/power-management-guide.xml"> 4<guide link="/doc/en/power-management-guide.xml">
5<title>Power Management Guide</title> 5<title>Power Management Guide</title>
6 6
7<author title="Author"> 7<author title="Author">
8 <mail link="earthwings@gentoo.org">Dennis Nienhüser</mail> 8 <mail link="earthwings@gentoo.org">Dennis Nienhüser</mail>
21 21
22<!-- The content of this document is licensed under the CC-BY-SA license --> 22<!-- The content of this document is licensed under the CC-BY-SA license -->
23<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> 23<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
24<license/> 24<license/>
25 25
26<version>1.36</version> 26<version>1.37</version>
27<date>2007-10-03</date> 27<date>2007-12-03</date>
28 28
29<chapter> 29<chapter>
30<title>Introduction</title> 30<title>Introduction</title>
31<section> 31<section>
32<body> 32<body>
334<c>ac_adapter</c> and <c>battery</c> on most laptops, but it might be different 334<c>ac_adapter</c> and <c>battery</c> on most laptops, but it might be different
335on yours. 335on yours.
336</p> 336</p>
337 337
338<pre caption="Determining ACPI events for changing the power source"> 338<pre caption="Determining ACPI events for changing the power source">
339# <i>tail -f /var/log/acpid | grep "received event"</i> 339# <i>tail -f /var/log/messages | grep "received event"</i>
340</pre> 340</pre>
341 341
342<p> 342<p>
343Run the command above and pull the power cable. You should see something like 343Run the command above and pull the power cable. You should see something like
344this: 344this:
776# <i>watch grep \"cpu MHz\" /proc/cpuinfo</i> 776# <i>watch grep \"cpu MHz\" /proc/cpuinfo</i>
777</pre> 777</pre>
778 778
779<p> 779<p>
780If <path>/proc/cpuinfo</path> doesn't get updated (see <uri 780If <path>/proc/cpuinfo</path> doesn't get updated (see <uri
781link="#doc_chap8">Troubleshooting</uri>), monitor the CPU frequency with: 781link="#doc_chap8">Troubleshooting</uri>), monitor the CPU frequency with
782<c>sys-apps/x86info</c>:
782</p> 783</p>
783 784
784<pre caption="Alternative CPU speed monitoring"> 785<pre caption="Alternative CPU speed monitoring">
785# <i>watch x86info -mhz</i> 786# <i>watch x86info -mhz</i>
786</pre> 787</pre>

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