[ltp] Overheating again
Nicolas Dufresne
linux-thinkpad@linux-thinkpad.org
Mon, 04 Jul 2005 17:41:51 -0400
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Hi,
I called IBM/Lenovo technical support today and they told me that
overheating was a normal for my laptop and that if I send it for repair
they would charge me for it. They would have told me that I'm stupid
and it would have been the same. Then, I think they can't handle the
fact that I was able to monitor CPU speed and temperature on both Linux
and Windows, or they just don't want to deal with Linux users. That
becomes a bit frustrating.
Right now I don't know what I should do. Is there anyone experience
with this ? Should I called back later expecting a more comprehensive
person? My laptop is 4 weeks old and it crashs in 4 seconds making
these steps (since last week):
echo performance
> /sys/device/system/cpu/cpu0/cpufreq/scaling_governor
echo 1700000
> /sys/dedevice/system/cpu/cpu0/cpufreq/scaling_max_freq
while true; do true; done
When IDLE in performance mode the cpu runs at 61 C and won't stabilise
when loaded by previous loop. At 1.4GHz it stabilise at 80 C. I fixed
scaling_max_freq at 1.2 GHz until I found a solution. My laptop T42
2378RBF 1.7G 512Mb ram 80 gig hd (IBM replaced the HD for me). I'm
running Gentoo Linux this is enough to proove that it wasn't overheating
when I received it. I also tested this with the same result on Knoppix
ACPI and APM, both shut down near 95 C.
Thanks for any tips or procedures,
________________________________________________________________________
Nicolas Dufresne <Nicolas.Dufresne@USherbrooke.ca>
Étudiant en informatique, Université de Sherbrooke
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Hi,<BR>
<BR>
I called IBM/Lenovo technical support today and they told me that overheating was a normal for my laptop and that if I send it for repair they would charge me for it. They would have told me that I'm stupid and it would have been the same. Then, I think they can't handle the fact that I was able to monitor CPU speed and temperature on both Linux and Windows, or they just don't want to deal with Linux users. That becomes a bit frustrating.<BR>
<BR>
Right now I don't know what I should do. Is there anyone experience with this ? Should I called back later expecting a more comprehensive person? My laptop is 4 weeks old and it crashs in 4 seconds making these steps (since last week):<BR>
<BLOCKQUOTE>
echo performance > /sys/device/system/cpu/cpu0/cpufreq/scaling_governor<BR>
echo 1700000 > /sys/dedevice/system/cpu/cpu0/cpufreq/scaling_max_freq<BR>
while true; do true; done<BR>
</BLOCKQUOTE>
When IDLE in performance mode the cpu runs at 61 C and won't stabilise when loaded by previous loop. At 1.4GHz it stabilise at 80 C. I fixed scaling_max_freq at 1.2 GHz until I found a solution. My laptop T42 2378RBF 1.7G 512Mb ram 80 gig hd (IBM replaced the HD for me). I'm running Gentoo Linux this is enough to proove that it wasn't overheating when I received it. I also tested this with the same result on Knoppix ACPI and APM, both shut down near 95 C.<BR>
<BR>
Thanks for any tips or procedures,<BR>
<BR>
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<B><FONT SIZE="4">Nicolas Dufresne </FONT></B><<A HREF="mailto:Nicolas.Dufresne@USherbrooke.ca">Nicolas.Dufresne@USherbrooke.ca</A>><BR>
Étudiant en informatique, Université de Sherbrooke
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