laptop fan control via FreeBSD

[Xavier]

On Sat, Jan 19, 2013 at 05:04:36PM +0100, Polytropon wrote:

Hi Polytropon,

> On Sat, 19 Jan 2013 16:55:23 +0100, Xavier wrote:
> > On Sat, Jan 19, 2013 at 03:13:58PM +0100, Fabian Keil wrote:
> >
> > Hi Fabian,
> >
> > > Xavier <xavierfreebsdquestions at gmail.com> wrote:
> > >
> > > > Is there any way to control the on and off the fan on a laptop using FreeBSD?
> > >
> > > It depends on the laptop. On mine it works:
> > >
> > > fk at r500 ~ $sysctl -ad | grep fan
> > > dev.acpi_ibm.0.fan_speed: Fan speed
> > > dev.acpi_ibm.0.fan_level: Fan level
> > > dev.acpi_ibm.0.fan: Fan enable
> > >
> >
> > My output of 'sysctl -ad | grep fan' don't show these parameters. Why ?
> > Because, my BIOS don't support these aparameters ? Another answer ?
>
> For laptops, you usually load a kernel module for interfacing
> with the specific ACPI functions, like acpi_ibm.ko. There are
> several others, but see "man acpi_ibm" for some impressions.
>

Yes, but I have an acer Aspire 5634WLMi, and:

% ls /boot/kernel/acpi*
/boot/kernel/acpi_asus.ko               /boot/kernel/acpi_panasonic.ko
/boot/kernel/acpi_asus.ko.symbols
/boot/kernel/acpi_panasonic.ko.symbols
/boot/kernel/acpi_dock.ko               /boot/kernel/acpi_sony.ko
/boot/kernel/acpi_dock.ko.symbols
/boot/kernel/acpi_sony.ko.symbols
/boot/kernel/acpi_fujitsu.ko            /boot/kernel/acpi_toshiba.ko
/boot/kernel/acpi_fujitsu.ko.symbols
/boot/kernel/acpi_toshiba.ko.symbols
/boot/kernel/acpi_hp.ko                 /boot/kernel/acpi_video.ko
/boot/kernel/acpi_hp.ko.symbols
/boot/kernel/acpi_video.ko.symbols
/boot/kernel/acpi_ibm.ko                /boot/kernel/acpi_wmi.ko
/boot/kernel/acpi_ibm.ko.symbols        /boot/kernel/acpi_wmi.ko.symbols

I don't have an acer kernel module for ACPI.

Thanks, see you.