Messages in this thread | | | Date | Sat, 17 May 2014 08:25:38 -0700 | From | Guenter Roeck <> | Subject | Re: Dell Latitude E6440 & i8k |
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On 05/16/2014 12:11 PM, Jean Delvare wrote: > Hi Pali, > > On Fri, 16 May 2014 20:37:41 +0200, Pali Rohár wrote: >> Hello, >> >> on Dell Latitude E6440 driver i8k reporting total nonsense values > > That's kind of excessive wording, the output isn't that bad. > >> $ sensors >> i8k-virtual-0 >> Adapter: Virtual device >> Right Fan: 93450 RPM >> CPU: +57.0°C >> temp2: +57.0°C >> temp3: +40.0°C >> temp4: +127.0°C >> >> Right Fan and temp4 are for sure incorrect. > > Driver is reverse-engineered so this is best effort and some tweaking > may be needed. > >> Value temp4 is always 127 and is never changing, but value for >> Right Fan is increasing when fan is more noisy. So it looks like >> value for Right Fan is not correctly normalized or multiplier is >> incorrect. >> >> And name "Right" is incorrect too. Fan is on left side of this >> notebook, not right as reported by driver. >> >> It is possible to fix these problems? > > Load the i8k driver with fan_mult=1. >
Would it make sense to change the default multiplier to 1 ? Lots of people have problems with it, and trying to figure out affected machines one by one would be an all but impossible task.
Guenter
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