[ltp] [PATCH] ibm_acpi - Allow fan to be set to full speed

Bret Comstock Waldow linux-thinkpad@linux-thinkpad.org
Mon, 22 Aug 2005 07:10:25 +1200


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On Mon, 22 Aug 2005 00:34, honey@gneek.com wrote:

> Why don't our thinkpad fans go that fast on their own when near
> critical temperature?  It seems to be a solution to me.

Do we know that the fan can operate at these speeds without significantly=20
shortening it's lifespan?

Does the fan ever run this fast under Windows?  If not, and Windows=20
nevertheless doesn't go into thermal shutdown, then we are missing some oth=
er=20
part of the power/thermal management picture, and trying to push the fan in=
to=20
making up for our lack of knowledge.

The easy answer is easy - do we know this is the right one?  I'd like to he=
ar=20
some discussion.

I don't mean "well, if it goes fast, it will cool better, won't it?" - too=
=20
many ifs.  I mean something like "it goes this fast in Windows routinely, s=
o=20
we know we aren't abandoning all the engineering work IBM put into the=20
design".

Cheers,
Bret

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