Re: Hardware running hot and without the fan

[Lars NoodÃn]

On 11/03/2011 05:06 PM, Guenter Roeck wrote:
> On Thu, 2011-11-03 at 10:25 -0400, Lars NoodÃn wrote:
[snip]
>> The one machine reports one fan and the other two fans.  I haven't found
>> a way to set the fan speed manually.  The output from sensors
>> is
>>  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593/comments/44
>> and here
>>  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593/comments/47
> 
> Do the fans actually turn, or is the output bogus ?

The output is bogus, the fans are not turning.  On #47 there above, I
think the temperatures might be inaccurate, too.  Since they'll go up
and down as much as 8 degrees in a few seconds.

> You should be able to set the fan speed by writing into the fanX_input
> and/or fanX_output sysfs attributes. You find those
> in /sys/class/hwmon/hwmon0/device (assuming there is only one hwmon
> device).

I can set the fan speed manually.  e.g.:

 echo 3500 > /sys/class/hwmon/hwmon0/device/fan1_output

That helps some.

/Lars
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