Mailinglist Archive: opensuse-bugs (3857 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=736077

https://bugzilla.novell.com/show_bug.cgi?id=736077#c15


--- Comment #15 from Michael Chang <mchang@xxxxxxxx> 2012-04-09 07:04:48 UTC ---
> From your provided result all cooling fans are supposed to be turning at 66
(kernel 3.2.10 ) and 72 (kernel 3.3.3) degree C. By fact of examining these
values ..

/sys/class/thermal/cooling_device[0-9]/type is "fan" and 
/sys/class/thermal/cooling_device[0-9]/sys/class/thermal/cooling_device[0-9]/cur_state
is "1".

My idea is basically like this
If there's any fan not turning .. there seems to be wrong in firmware(as it
reports turning but actually not ..). If all fans did work, try to reproduce
your problem and find any corresponding cooling_device node
(/sys/class/thermal/cooling_device?) that cur_state is "0" and type is "fan"
and see what temperature in trip_point it was associated with (the output of
comment #14 would be helpful to identify it). In theory, the thermal_zone?/temp
should be lower than that trip_point temperature.

If you interested in explaining the thermal sysfs it's in the kernel
documentation.
http://www.mjmwired.net/kernel/Documentation/thermal/sysfs-api.txt

Thanks.

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