On Mon, 23 Jul 2007, Tomasz Torcz wrote:
>  short version: when set to "auto" fan never accelerates beyond 2800.
> CPU can get very hot.

Two possibilites:

1. The EC auto mode in your ThinkPad is crap.  If this is the real problem,
you will need to file a warranty request with Lenovo to fix the EC firmware.

2. The EC doesn't have an auto mode or the auto mode is enabled in a
different way, and the safety net is getting the fan set to level 4.

Note that auto mode "normal" speed *is* level 4, so verifying that 2800 RPM
is level 4 in your ThinkPad might not help much.

Please send me the dmidecode and acpidump output for your thinkpad. Remember
to XXX-out the UUID and serial numbers in the dmidecode output.

> I'm using Ubuntu Feisty kernel with IBM ThinkPad ACPI Extras v0.13. Is
> this non-working
> "auto" deficiency known and fixed in later releases?

No, but later releases have better support for your ThinkPad in other areas,
so you might want to try out the 0.15 release I just sent out if it will
apply to your kernel.  For maximum compatibility, do *not* enable
thinkpad-acpi's input layer by default.

-- 
  "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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