For the link challenged - how to work around your fan issue on a Lenovo running a late version kernel
Linux Kernel 2.6.22 and Above (ibm-acpi has been replaced by thinkpad-acpi)
To enable fan control, the module parameter fan_control=1 must be given to thinkpad-acpi. (find the thinkpad-acpi configuration file under /etc/modprobe.d)
Having done so, reboot and you can use the following commands to control fan speed:
NOTE!
Instead of rebooting reloading module is enough (rmmod thinkpad_acpi && modprobe thinkpad_acpi as root).
For the link challenged - how to work around your fan issue on a Lenovo running a late version kernel
Linux Kernel 2.6.22 and Above (ibm-acpi has been replaced by thinkpad-acpi)
To enable fan control, the module parameter fan_control=1 must be given to thinkpad-acpi. (find the thinkpad-acpi configuration file under /etc/modprobe.d)
Having done so, reboot and you can use the following commands to control fan speed:
NOTE!
Instead of rebooting reloading module is enough (rmmod thinkpad_acpi && modprobe thinkpad_acpi as root).
# echo level 0 > /proc/acpi/ibm/fan (fan off)
# echo level 2 > /proc/acpi/ibm/fan (low speed)
# echo level 4 > /proc/acpi/ibm/fan (medium speed)
# echo level 7 > /proc/acpi/ibm/fan (maximum speed)
# echo level auto > /proc/acpi/ibm/fan (automatic - default)
# echo level disengaged > /proc/acpi/ibm/fan (disengaged)