Re: 2.6.33-rc2: regression: gkrellm no longer shows all the temperatures on thinkpad x60

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On Thu, 07 Jan 2010, Pavel Machek wrote:
> > Please apply the latest stack of patches (sent them to acpi-test
> > yesterday).
> > 
> > It is failing to register the ALSA mixer for some reason, and due
> > to a bug, it is not loading the module at all.  I will look at the reason it
> > is failing to register the ALSA mixer soon.  Meanwhile, the patches I sent
> > to Len make sure the module can still load sucessfully.
> 
> Well, I'm not sure its completely fixed. I got this in my syslog:
> 
> thinkpad_acpi: THERMAL EMERGENCY: a sensor reports something is
> extremely hot!
> thinkpad_acpi: temperatures (Celsius): 95 47 N/A 89 47 N/A 41 N/A 51
> 61 N/A N/A N/A N/A N/A N/A

And the extremely hot sensor is that 89°C, which is the GPU I think (varies
from thinkpad to thinkpad).  That is not normal, and I'd say it needs
repair, probably a badly seated heatsink or failed thermal interface
compound.

> ...meaning thinkpad_acpi is active and working, but still gkrellm does
> not report temperatures as it used to.

Well, gkrellm has always been a hack, it may be objecting to the third N/A
there (which reads as -128 through /proc, and results in ENXIO on hwmon
sysfs).

> root@amd:~# cat /proc/acpi/ibm/thermal 
> temperatures:	74 48 -128 75 47 -128 41 -128 51 58 -128 -128 -128
> -128 -128 -128
> root@amd:~# 

The driver is operating normally (which doesn't surprise me, I didn't touch
that code for quite a while, other than adding the temperature dump so that
we could track what was cooking in your thinkpad :) ).

> ...is there, so I'm not sure why gkrellm stopped working.

I'd take a look on the gkrellm side of things.  Maybe I am doing something
it doesn't like in the hwmon interface, etc.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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