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I recently install Ubuntu 9.0.4 on a Presario S4000NX and the CPU fan speed is kept at max. With Windows XP installed the fan speed would increase/decrease as required.

I've tried to install lm-sensors and run the sensors-detect. It recommended that I load the modules which I did:


When running sensor-detect it gave me this strange message:

Trying family SMSC
Found SMSC LPC47M15x/192/997 Super IO Fan Sensors
    (but not activated)

Running the sensors command gives me a list of voltages and CPU and temperature but doesn't list any fans.

After doing some Internet research I then tried to load the smsc47m1 module but I get the following error:

FATAL: Error inserting smsc47m1 (/lib/modules/2.6.28-15-generic/kernel/drivers/hwmon/smsc47m1.ko): no such device

The file smsc47m1.ko does exist in the listed folder.

Any suggestions for getting the fan speed (and the noise) down in Ubuntu? Thanx.

- Chris

P.S. - I would have put better tags but Server Fault wouldn't let me.

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migrated from Mar 21 '10 at 9:47

This question came from our site for system and network administrators.

The no such device error indicates it isn't the right module to load, not that the .ko isn't found. Do you know if this is a regression? (did you try for example with other linux livecd, one or two years older). – tonfa Aug 25 '09 at 23:21

Have you ever updated the BIOS? I don't know if it helps (or if there's a newer BIOS available for your system) in your case, but for example with my Dell Latitude D830 laptop the original BIOS version caused deadlocks during docking/undocking, WLAN didn't work very reliably and so on. With the later revisions everything's been fine.

Also, upgrading to Ubuntu 10.04 would be a good idea.

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