acpid

  1. Bug #370173
  2. Comment #47

Comment 47 for bug 370173

Revision history for this message
CharleyS (charley-socci-com) wrote : Re: Ubuntu 9.04 laptop overheat and shutdown

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Linux Kernel 2.6.22 and Above (ibm-acpi has been replaced by thinkpad-acpi)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)