[RFC] Patch to enable temperature ceiling in powerd

[Hajimu UMEMOTO]

Hi,

>>>>> On Sat, 16 Feb 2008 17:38:44 +0100
>>>>> Johannes Dieterich <dieterich.joh at googlemail.com> said:

dieterich.joh> # hw.acpi.thermal.tz1.passive_cooling=1
dieterich.joh> su: hw.acpi.thermal.tz1.passive_cooling=1: command not found

It should be `sysctl hw.acpi.thermal.tz1.passive_cooling=1'.

dieterich.joh> And, yes, my notebook has a fan. It is also running. And running
dieterich.joh> stronger when the load is higher. But somehow it seems to me as if e.g.
dieterich.joh> approx. 4300 rpm's in FreebSD 7 are not quite the same as they are in
dieterich.joh> e.g. SuSE Linux. At least the cooling they give is too small and causing
dieterich.joh> overheat.

Hmm, it's strange to me.  I believe that passive cooling is the last
resort as far as your laptop has a fan, and you don't need to rely on
passive cooling under normal conditions.

Sincerely,

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