I was jumping to conclusions.<br>The problem is seems to be related to pcie_aspm.<br><br>Without change powertop (version 1.11) reports 40W power consumption<br>and the following is reported as a policy<br>~ % cat /sys/module/pcie_aspm/parameters/policy<br>

[default] performance powersave<br><br><br>I added pcie_aspm=force to the kernel boot parameters and have 24.6W power consumption (which I think is normal for this notebook). The policy is then reported as:<br><br>~ % cat /sys/module/pcie_aspm/parameters/policy<br>
default performance [powersave]<br><br><br>Regards, Martin<br><br><br><br><div class="gmail_quote">2012/4/26 Martin Kielhorn <span dir="ltr">&lt;<a href="mailto:bts@bts.grml.org" target="_blank">bts@bts.grml.org</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
New submission from Martin Kielhorn &lt;<a href="mailto:kielhorn.martin@googlemail.com">kielhorn.martin@googlemail.com</a>&gt;:<br>
<div><div class="h5"><br>
hi,<br>
i really like grml. the grml system is much more responsive then my<br>
harddrive based debian when loaded into ram.<br>
it was quite easy to add emacs, slime and sbcl. now i have a very<br>
productive common lisp development environment.<br>
<br>
big thanks for this.<br>
<br>
<br>
however i struggled with the problem of sever heat build-up for a few days.<br>
the notebook gets a lot hotter than in debian 6 64bit.<br>
<br>
i tried a lot of settings with powertop and finally came to the conclusion<br>
that the following commands help:<br>
<br>
sudo modprobe msr<br>
root@shaitan ...tools/power/x86/x86_energy_perf_policy #<br>
./x86_energy_perf_policy -v &#39;powersave&#39;<br>
<br>
in order to get this program, i had to &quot;apt-get install linux-source-3.1&quot;<br>
and unpack the source in /usr/src<br>
<br>
maybe other people would like to know about this as well.<br>
<br>
regards, martin<br>
<br>
--<br>
Martin Kielhorn<br>
Institute of Photonic Technology, Albert-Einstein Str. 9, 07745 Jena,<br>
Germany<br>
Tel.: <a href="tel:%2B49%20%280%29%203641%20206%20432" value="+493641206432">+49 (0) 3641 206 432</a><br>
Randall Division of Cell &amp; Molecular Biophysics, King&#39;s College London, NHH,<br>
Guy&#39;s Campus, London SE1 1UL, U.K.<br>
tel: <a href="tel:%2B44%20%280%29%20207%20848%206519" value="+442078486519">+44 (0) 207 848 6519</a>,  fax: <a href="tel:%2B44%20%280%29%20207%20848%206435" value="+442078486435">+44 (0) 207 848 6435</a><br>
<br>
</div></div>----------<br>
files: grml-hwinfo-2012-04-26--21-03-43-CEST.tar.bz2, unnamed<br>
messages: 4332<br>
nosy: kielhorn.martin<br>
status: unread<br>
title: fix for extrem notebook heat build-up<br>
<br>
_____________________________________<br>
GRML issue tracker &lt;<a href="mailto:bts@bts.grml.org">bts@bts.grml.org</a>&gt;<br>
&lt;<a href="http://bts.grml.org/grml/issue1162" target="_blank">http://bts.grml.org/grml/issue1162</a>&gt;<br>
_____________________________________</blockquote></div><br><br clear="all"><br>-- <br>Martin Kielhorn<br><div>Institute of Photonic Technology, Albert-Einstein Str. 9, 07745 Jena,</div><div>Germany</div><div>Tel.: <a value="+493641206431">+49 (0) 3641 206 432</a></div>
<div>Randall Division of Cell &amp; Molecular Biophysics, King&#39;s College London, NHH,</div><div>Guy&#39;s Campus, London SE1 1UL, U.K.</div><div>tel: <a value="+442078486519">+44 (0) 207 848 6519</a>,  fax: <a value="+442078486435">+44 (0) 207 848 6435</a></div>
<br>