Inspiron 6400 1505e Can't get passive cooling while in AC power

[Hajimu UMEMOTO]

Hi,

>>>>> On Sat, 27 Jan 2007 15:21:19 +0000
>>>>> "Abdullah Ibn Hamad Al-Marri" <almarrie at gmail.com> said:

almarrie> Thank you for your kind prompt to help, but it didn't do the trick.

almarrie> Jan 27 15:16:12 DELL root: /etc/rc.d/sysctl: WARNING: sysctl
almarrie> hw.acpi.thermal.tz0
almarrie>                        .user_override does not exist.

It should be hw.acpi.thermal.user_override=1.
However, perhaps, it still doesn't work for you.  Your BIOS's thermal
zone might not specify _TC1, _TC2 and _TSP correctly.  They are
required for passive cooling.  Since, they are not visible through
sysctl, you cannot change the values.
If it is your case, please try the attached patch.  It adds
hw.acpi.thermal.tz0._TC1, hw.acpi.thermal.tz0._TC2 and
hw.acpi.thermal.tz0._TSP.
Choosing the values is an issue.  For your reference, my laptop
(Panasonic Let'snote CF-R4) has _TC1=0, _TC2=12, _TSP=40.

Sincerely,
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--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume at mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/