This issue is occuring for me since a very long time; using Windows the
fans have a much higher speed setting compared to using Linux and the
thinkpad-acpi driver. However, since the use of Maverick I experience a
lot more automatic shutdowns, triggered by thinkpad-acpi, due to
overheating. Before, I was using Karmic and also experienced it
sometimes.

When monitoring the temperatures manually and setting a fan speed
accordingly the CPU is cooled properly, but thinkpad-acpi never triggers
higher CPU fan speeds even when > 95 °C! That is, in my opinion, a bug.

I'm having this issue on my T61p - C2D T9300 w/ Nvidia QuadroFX 570M.
Both need quite a lot of cooling, especially when using the docking
station (less ventilation, more isolation on the bottom).

That's why I don't think this issue is specific for one Thinkpad model,
but occuring as soon as you start using thinkpad-acpi, also in older
versions of Ubuntu. And yes, it's a universe piece of software not part
of the core of Ubuntu, but this should really be fixed as it might cause
hardware failures.

I think running a user space software daemon as a workaround is rather
'dirty'.

More hardware related, but still not justifying the behaviour of thinkpad-acpi:
I noticed there was an awful lot of thermal grease on both the CPU and the GPU 
for the integrated heatsink/fan in my Thinkpad, I cleaned it, replaced this 
with a proper amount of thermal grease and temperatures are 10 °C lower since 
then.

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https://bugs.launchpad.net/bugs/751689

Title:
  Thinkpad x201* overheats due to slow fans when on 'auto'

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