X100e: fan speed is incorrect

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Hi

I own a X100e on kernel 2.6.30 and the fan speed is not right.

As you can see below, the faster the fan the less the number.
468 is the slowest fan speed
259 is fastest fan speed.
0 means fan stopped, which is correct :-)

In detail:

echo level [0-9] >/proc/acpi/ibm/fan
level / rpm
0    0
1    468
2    366
3    366
4    0  (!)
5    469
6    364
7    267
disengaged/full-speed    259

Maybe this can help to adjust the calculation of the fan speed.

Dominik

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