Now you'll be able to use this program easily. You must add 'fan_control=1' as a module parameter to 'thinkpad-acpi'.įor example, in Debian Lenny (and Ubuntu 8.04), you must add the following You must also enable manual control for your fans. You are required to have the Linux kernel with 'thinkpad-acpi' patch. This program is written in C, using GTK GUI. This is program for controlling fans speed on IBM/Lenovo ThinkPads. Packages are available for debian based linux systems.Ī GTK GUI program (packaged for Ubuntu 7.10 and 8.04) may also help.Īutomated program - Simple ThinkPad Fan Control There is an distro independent daemon ( ), written in python. For the default behavior, simply save tp-fancontrol ( download) as tp-fancontrol, make sure you've loaded thinkpad-acpi with the 'fan_control=1' parameter, and run: It monitors the laptop's thermal sensors and sets the fan speed accordingly, according to customizable thresholds.

# echo level disengaged | sudo tee /proc/acpi/ibm/fan (disengaged)Īn ACPI fan control script can be used to override the firmware's fan algorithm with gentler, quieter version. # echo level auto | sudo tee /proc/acpi/ibm/fan (automatic - default) # echo level 7 | sudo tee /proc/acpi/ibm/fan (maximum speed) # echo level 4 | sudo tee /proc/acpi/ibm/fan (medium speed) # echo level 2 | sudo tee /proc/acpi/ibm/fan (low speed) # echo level 0 | sudo tee /proc/acpi/ibm/fan (fan off) If you receive a PERMISSION DENIED error you can use the following command syntax instead as a work-around: # echo level disengaged > /proc/acpi/ibm/fan (disengaged)

# echo level auto > /proc/acpi/ibm/fan (automatic - default) # echo level 7 > /proc/acpi/ibm/fan (maximum speed) # echo level 4 > /proc/acpi/ibm/fan (medium speed) # echo level 2 > /proc/acpi/ibm/fan (low speed) # echo level 0 > /proc/acpi/ibm/fan (fan off) Having done so, reboot and you can use the following commands to control fan speed: To enable fan control, the module parameter fan_control=1 must be given to thinkpad-acpi.įor example, in Ubuntu 8.04 (Hardy Heron), add the following to /etc/modprobe.d/options: options thinkpad_acpi fan_control=1įor Debian Squeeze (testing) create /etc/modprobe.d/thinkpad_nf with: options thinkpad_acpi fan_control=1 and install the package thinkfan Fan control operations are disabled by default for safety reasons.

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