I have been getting random shutdowns on my eMachines M2350 laptop at
least since feisty where the *apparent* temperature suddenly goes from
<50C to >150C.  I seriously doubt it's getting anywhere near that hot.
The hard drive temperature is around 38C.  I updated to the latest 8.10
stable (2.6.27-7-generic) hoping for a fix, but no luck:

Nov  5 23:30:54 etaoin acpid: client has disconnected 
Nov  5 23:30:54 etaoin kernel: [23971.024121] ACPI: Critical trip point
Nov  5 23:30:54 etaoin kernel: [23971.024156] Critical temperature reached (159 
C), shutting down.

My /proc/acpi/thermal_zone/THRM/trip_points says:
critical (S5):           100 C
passive:                 98 C: tc1=0 tc2=1 tsp=150 devices=CPU0

echo no longer works to change the trip points, which is noted in <a
href="http://ubuntuforums.org/showthread.php?p=5135405&highlight=trip_points&page=2";>this
thread</a>.  I can't find what the new way to do it is.

-- 
thinkpad CPU overheat ubuntu hardy 8.04 
https://bugs.launchpad.net/bugs/213818
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