Re: Thinkpad T61 - Fan running a lot of time

[Henrique de Moraes Holschuh]

On Tue, 24 Mar 2009, Renato S. Yamane wrote:
> # echo level 7 > /proc/acpi/ibm/fan
> bash: echo: write error: Invalid argument
>
> How can I change fan level?

Read the driver documentation, at Documentation/laptops/thinkpad-acpi.txt.
Fan control is locked by default, for hardware safety reasons.  The docs
tell you why, how to use the fan control interface, and how to unlock it.

Also, I suggest you get used to the hwmon fan control interface on /sys,
procfs is going away sooner or later...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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