'There are no pwm-capable sensor modules installed'

[karol4722]

After reinstall my ubuntu 11.10 I can't control my fan speed (before reinstall everything was good)

Look at this:

root@muhahaha:/home/karol# sensors
k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +25.8°C  (high = +70.0°C)

root@muhahaha:/home/karol# pwmconfig
# pwmconfig revision 5857 (2010-08-22)
This program will search your sensors for pulse width modulation (pwm)
controls, and test each one to see if it controls a fan on
your motherboard. Note that many motherboards do not have pwm
circuitry installed, even if your sensor chip supports pwm.

We will attempt to briefly stop each fan using the pwm controls.
The program will attempt to restore each fan to full speed
after testing. However, it is ** very important ** that you
physically verify that the fans have been to full speed
after the program has completed.

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

Before reinstall I had more sensors. What should I do? Ubuntu 11.10 64bit

[overtone]

Im having the same problem buddy.


I'm following this tutorial for fan control. No luck with pwm though.

http://ubuntuguide.org/wiki/Ubuntu_E...8lm-sensors.29

[shmatic]

Hi guys,

came across this and thought I'd share it.

If you are using a PWM capable motherboard with the IT87 module and
you want to use fancontrol ...

If you can't load the it87 module - most likely your kernel needs

'acpi_enforce_resources=lax'

as kernel argument. Add it to your boot loader for example.
Then try

modprobe it87
lsmod | grep it87 --> make sure it's loaded
sensors-detect

save configuration, then run

sensors

to make sure everything loads properly.

Then try

pwmconfig

if pwmconfig gives you:

There are no pwm-capable sensor modules installed

You can get it working by loading the it87 module with the command:

modprobe it87 fix_pwm_polarity=1

pwmconfig should work as expected.