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

[Abdullah Ibn Hamad Al-Marri]

On 1/27/07, Hajimu UMEMOTO <ume at mahoroba.org> wrote:
> 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,
>
>
>
> --
> Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
> ume at mahoroba.org  ume@{,jp.}FreeBSD.org
> http://www.imasy.org/~ume/

That worked.

DELL# sysctl hw.acpi.thermal.user_override=1
hw.acpi.thermal.user_override: 0 -> 1

DELL# sysctl hw.acpi
hw.acpi.supported_sleep_state: S3 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S3
hw.acpi.lid_switch_state: NONE
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 1
hw.acpi.verbose: 0
hw.acpi.disable_on_reboot: 0
hw.acpi.handle_reboot: 0
hw.acpi.reset_video: 0
hw.acpi.cpu.cx_lowest: C1
hw.acpi.acline: 1
hw.acpi.battery.life: 100
hw.acpi.battery.time: -1
hw.acpi.battery.state: 0
hw.acpi.battery.units: 1
hw.acpi.battery.info_expire: 5
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 1
hw.acpi.thermal.tz0.temperature: 64.5C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.passive_cooling: 0
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: -1
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 126.0C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

Then

DELL# sysctl hw.acpi.thermal.tz0.passive_cooling=1
hw.acpi.thermal.tz0.passive_cooling: 0
sysctl: hw.acpi.thermal.tz0.passive_cooling: Operation not supported by device

What are the suggested values for these variables to make the fan runs?

hw.acpi.thermal.tz0._PSV: -1
hw.acpi.thermal.tz0._HOT: -1


-- 
Regards,

-Abdullah Ibn Hamad Al-Marri
Arab Portal
http://www.WeArab.Net/