In my experience with laptops, they will "overheat" basically because of how the are designed. Between the laptop charging all the time ( I assume because he's using it multiple hours at a time so it needs to plug in) and, small fans to cool hot processors, it just seems inevitable. Every laptop I've ever owned becomes very hot after hours of constant use no matter the OS. On the other hand you don't say if its getting hotter when running Linux vs MS, though I'm assuming it is because your question seems to imply that there is a different in OS's. To be honest though I'd look at the battery power management for Linux if it's gettting hotter than Windows. The IBM may not have as efficient driver for battery charging and isn't "trickleing" the lithium battery correctly. I'm only guessing to look there because I'm assuming again that the battery module is towards the front of the laptop and that is where the excessive heating is. Basically when the battery is discharging it's producing heat and the Linux kernel may not be telling the computer to ignore battery and just use the inline power so it keeps discharging and charging the battery constantly. All in all though, if it's not causing either OS to lock up and neither OS is saying there is something massively wrong, it just let it be and get a laptop cooler to help keep it cool.
<br><br>Good Luck,<br><br>Just Bill<br><br><br><div><span class="gmail_quote">On 8/23/07, <b class="gmail_sendername">Matthew T. Engel</b> <<a href="mailto:mengel@allegheny.edu">mengel@allegheny.edu</a>> wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;">I have a dual boot (XP/FC)
IBM X60. The user has installed customized user-mode kernels and the laptop
palm rest becomes extremely hot after running for several hours. The laptop
does not over heat or shut down, just becomes very hot to the touch. </span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;"> </span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;">Running the laptop in
Windows XP, for the same time or longer w/various apps, and IBM diagnostic
utilities yields no problems or over heating.</span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;"> </span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;">I'm thinking that it is safe
to assume that the problem lies somewhere within the linux kernels. Is there a
good way to monitor/track the kernel's effect on the hardware so that I may be
able to tell for certain if it is the linux kernel?</span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;"> </span></font></p>
<p style=""><font face="Courier New" size="2"><span style="font-size: 10pt;">Thanks, Matt</span></font></p>
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<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"><br>
Matthew T. Engel</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Systems Administrator</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Allegheny</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> College</span></font><font face="Arial" size="2">
<span style="font-size: 10pt; font-family: Arial;">, Department
of Computer Science</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Meadville</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">, PA 16335</span></font><font face="Arial" size="2">
<span style="font-size: 10pt; font-family: Arial;"></span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"><a href="mailto:mengel@allegheny.edu" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">mengel@allegheny.edu</a></span>
</font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"><a href="mailto:mtengel@andrew.cmu.edu" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">mtengel@andrew.cmu.edu</a></span>
</font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">(814) 332-2906</span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
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