ACPI and Gateway 400sd4 laptop

[Nate Lawson]

> I have a Gateway 400SD4 laptop that I am having thermal issues with in
> FreeBSD-CURRENT. The two-speed fan dosen't seem to come on. With ACPI on,
> after the system has been running a little while and has warmed up, if I
> turn off acpi with "acpiconf -d" the fan will kick on immediately. After
> that the fan appears to behave normally, turning on and off when
> necessary.
> If the laptop boots warm with the fan on, it will shut off when it gets
> cool but it won't come back on again.

Output from sysctl hw.acpi would help.  You can also play with values from
0-2 for hw.acpi.tz0.active.  That should manually turn the fan on at
various speeds.

-Nate