Messages in this thread | | | Date | Sat, 17 May 2014 11:44:29 +0200 | From | Jean Delvare <> | Subject | Re: Dell Latitude E6440 & i8k |
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On Fri, 16 May 2014 21:23:02 +0200, Pali Rohár wrote: > So is not there any documentation? I think that Dell released > some SMM/BIOS code... But I'm not sure about it.
I don't know either. But even with some SMM/BIOS code, it doesn't tell you which sensors are present on which machines, nor what they correspond to, nor what scaling factors need to be applied.
> > (...) > > Load the i8k driver with fan_mult=1. > > Looks like now it reports more plausible value for fan. When fan > is at low it reporting between 3000 - 3100 RPM. > > > Add the following to /etc/sensors.d/i8k.conf: > > > > chip "i8k-virtual-0" > > > > label fan2 "Left Fan" > > ignore temp4 > > And this fixing output from sensors program. > > $ sensors > i8k-virtual-0 > Adapter: Virtual device > Left Fan: 3088 RPM > CPU: +54.0°C > temp2: +57.0°C > temp3: +40.0°C > > But Right Fan name is still present in kernel sysfs: > > $ grep "" /sys/class/hwmon/hwmon1/* > /sys/class/hwmon/hwmon1/fan2_input:3091 > /sys/class/hwmon/hwmon1/fan2_label:Right Fan > /sys/class/hwmon/hwmon1/name:i8k > /sys/class/hwmon/hwmon1/pwm2:128 > /sys/class/hwmon/hwmon1/temp1_input:56000 > /sys/class/hwmon/hwmon1/temp1_label:CPU > /sys/class/hwmon/hwmon1/temp2_input:57000 > /sys/class/hwmon/hwmon1/temp3_input:40000 > /sys/class/hwmon/hwmon1/temp4_input:127000
The drivers sets default labels in sysfs, the libsensors configuration files lets you override these defaults with your own labels.
-- Jean Delvare SUSE L3 Support -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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