Re: No support for SMBus adapter 8086:0f12 at 0000:00:1f.3

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Hi Raimar,

On Fri, 12 Sep 2014 22:25:03 +0200, ""Bühmann, Raimar"" <Raimar@xxxxxxxxxxx> wrote:
> on my new Lenovo laptop only the sensors for CPU temperature have been 
> found, but the fan not. What can I do?
>
> Here is the interesting part of the output of "sudo sensors-detect":
> 
> # sensors-detect revision 6254 (2014-09-10 21:18:25 +0200)
> # System: LENOVO 20421 [Lenovo S20-30] (laptop)
> # Board: LENOVO Edonis 2A1
> # Kernel: 3.16.2-1-ARCH x86_64
> # Processor: Intel(R) Celeron(R) CPU N2830 @ 2.16GHz (6/55/8)
> 
> [...]
> Intel digital thermal sensor...                             Success!
>      (driver `coretemp')
> [...]
> Probing for Super-I/O at 0x4e/0x4f
> Trying family `National Semiconductor/ITE'...               Yes
> Found unknown chip with ID 0x8528
> [...]
> Found unknown SMBus adapter 8086:0f12 at 0000:00:1f.3.
> Sorry, no supported PCI bus adapters found.
> 
> Next adapter: i915 gmbus ssc (i2c-0)
> Next adapter: i915 gmbus vga (i2c-1)
> Next adapter: i915 gmbus panel (i2c-2)
> Next adapter: i915 gmbus dpc (i2c-3)
> Next adapter: i915 gmbus dpb (i2c-4)
> Next adapter: i915 gmbus dpd (i2c-5)
> Next adapter: DPDDC-B (i2c-6)
> Next adapter: DPDDC-C (i2c-7)
> [...]
> Driver `coretemp':
>    * Chip `Intel digital thermal sensor' (confidence: 9)

That's also what I have on my Lenovo ThinkPad X230 as far as
sensors-detect is concerned. Additionally, "sensors" shows acpitz (from
driver thermal) and thinkpad (from driver thinkpad_acpi.) The full
output looks like this:

acpitz-virtual-0
Adapter: Virtual device
temp1:        +46.0°C  (crit = +103.0°C)

thinkpad-isa-0000
Adapter: ISA adapter
fan1:        2967 RPM

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +49.0°C  (high = +87.0°C, crit = +105.0°C)
Core 0:         +47.0°C  (high = +87.0°C, crit = +105.0°C)
Core 1:         +49.0°C  (high = +87.0°C, crit = +105.0°C)

What does your "sensors" output look like?

> Until now I only found out, that the fan mode can be changed by
>     echo 
> 'X'>/sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/fan_mode
> where X defines the fan cooling mode, i.e X can be one of the following 
> possibilities:
>      1 = interval cooling
>      2 = regulate fan speed depending on temperature.

I don't have anything like that on my model.

-- 
Jean Delvare
SUSE L3 Support

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