Fan Control

[SnackMasterX]

Hello,

I am trying to get fan control working on my computer. I treid doing a quick google search initially and found a guide giving instructions for using lm_sensors however after running through the config and restarting my computer I get the following when I try to use pwmconfig:

/sbin/pwmconfig: There are no pwm-capable sensor modules installed

Is there another method of controlling fan speed other than lm_sensors? I'm not sure what other output/information I could provide to help resolve this but please let me know and I will get the info as quickly as possible.

Thanks!

[stevea]

If
find /sys -name 'pwm*'
returns nothing then you have no exposed pwm control.
Maybe search for
find /sys -name 'fan*'
too

[SnackMasterX]

find /sys -name 'pwm*' retruned no output however find /sys -name 'fan*' returned this

/sys/bus/acpi/drivers/fan
/sys/devices/platform/applesmc.768/fan1_manual
/sys/devices/platform/applesmc.768/fan1_output
/sys/devices/platform/applesmc.768/fan1_max
/sys/devices/platform/applesmc.768/fan1_min
/sys/devices/platform/applesmc.768/fan1_input
/sys/devices/platform/applesmc.768/fan1_label
/sys/devices/platform/applesmc.768/fan1_safe
/sys/kernel/slab/fanotify_response_event

[george_toolan]

What kind of a macbook is this?

On a PC the fans are controlled by your system's BIOS ;-)

[SnackMasterX]

Its a crApple Mac Mini, the 2010 verison. Worst investment ever but trying to make it useful, just feel that CPU idling around 60C and GPU around 70C is a little un-necessary.

[george_toolan]

What exactly are you trying to do?

Actually these values are quite reasonable for a small and silent computer ;-)

If you ask Google you will find people who try to set fan speeds manually.

[SnackMasterX]

I've tried asking google, maybe I'm not asking the corret question? I just want to change the minimum speed of the fan from 1500 to 2500 then also adjust the curve which controls the fan speed based off the CPU temperature.

[CREED0R]

Hi,

I got a similar problem. I got a Lenovo Thinkpad Edge and just installed Fedora 17 but somehow I'm not able to change the fan speed.

How do you control the fan correctly? I'm asking because it seems that it's not controled correctly in auto-mode:

$ sensors

acpitz-virtual-0
Adapter: Virtual device
temp1:        +66.0°C  (crit = +105.0°C)

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +66.8°C  (high = +70.0°C)
                       (crit = +100.0°C, hyst = +95.0°C)

thinkpad-isa-0000
Adapter: ISA adapter
fan1:         598 RPM
temp1:        +66.0°C  
temp2:         +0.0°C  
temp3:        +66.0°C  
temp4:         +0.0°C  
temp5:        +23.0°C 
...

I can easily heat the CPU temp up to 75° with the fan still idling at 500 rpm. So what I want is to be able to manually set the fan speed to maximum speed.

So far I tried:
$ cat /proc/acpi/ibm/fan

status:		enabled
speed:		597
level:		auto

$ sudo echo level 7 > /proc/acpi/ibm/fan

bash: echo: write error: Invalid argument

For this to work I created the file /etc/modprobe.d/thinkpad_acpi.conf with
"options experimental=1 fan_control=1"

But as you can see, it's not working. So how do I change the fan speed?

Greetings
Frank

[SnackMasterX]

So I just had a thought, I'm wondering if we might be approaching this the wrong way. My GPU usually idles about 10C warmer than my CPU. Think it might be possible the fan is controlled by the GPU and it just to happens to be benefitting my CPU? How could I go about verifying/testing this? I have a GeForce 320m and I'd rather not run proprietary drivers if I can avoid it but if I can't avoid it then I can search up that guide I had to use on my other computer, I just remember it was a PITA to get propritary drivers installed.

[johncena]

Fan Control is Open Source
Fan Control is distributed under the GNU General Public License (GPL). The sources are included in the download.

System Requirements:
MacOS 10.4 - MacOS 10.6, Intel Core Duo Processor. Please note that the use of FanControl is only recommended for first generation MacBook (late 2006) and MacBook Pro (early 2006) machines.

Disclaimer: This product modifies some of Apple's default parameters defining thermal control behaviour. While we do our best to ensure proper operation, we cannot take liability of inproper use or faulty operation. Use of this software is at your own risk.