RE: PROBLEM: CPU fan shuts down on load of fan.ko in kernel 2.6.18 and later

Karasyov, Konstantin A
2007-01-11T13:37:42Z

Hi,

Could you send acpidump command output?

Regards.
Konstantin.
>-----Original Message-----
>From: Salatiel Filho [mailto:salatiel.filho@gmail.com]
>Sent: Wednesday, January 10, 2007 6:19 AM
>To: Karasyov, Konstantin A
>Cc: Matthew Brett; linux-acpi@vger.kernel.org
>Subject: Re: PROBLEM: CPU fan shuts down on load of fan.ko in kernel 2.6.18
>and later
>
>On 1/9/07, Karasyov, Konstantin A <konstantin.a.karasyov@intel.com> wrote:
>> Hi Matthew,
>>
>> Could you please perform the following testing:
>
>
>
>Well , i tried to perform this steps in my machine since i think my
>fans are not working in linux. Well , for my surprise , i have
>absolutely nothing in
>
># ls -lh /proc/acpi/fan/
>total 0
>
>
>
>>
>> 1. boot, make sure the fan doesn't spin.
>>
>> 2. do 'cat /proc/acpi/thermal/*/*', check the following:
>> - the 'state' field shows 'active[<smthng>]'
>> (if not - perform some CPU-intensive task);
>> - fan still doesn't spin,
>
>#cat /proc/acpi/thermal/*/*
>cat: /proc/acpi/thermal/*/*: No such file or directory
>
>#cat /proc/acpi/thermal_zone/*/*
><setting not supported>
>cooling mode: critical
><polling disabled>
>state: ok
>temperature: 60 C
>critical (S5): 99 C
><setting not supported>
>cooling mode: critical
><polling disabled>
>state: ok
>temperature: 27 C
>critical (S5): 105 C
>
>
>
>
>>
>> 3. do 'cat /proc/acpi/fan/*/state', check the following:
>> - the 'status' field shows 'on' (at least one of them);
>> - fan still doesn't spin,
>>
>
># cat /proc/acpi/fan/*/state
>cat: /proc/acpi/fan/*/state: No such file or directory
>
>
>
>
>> 4a. do consequently (as root) the following:
>> - 'echo 3 > /proc/acpi/fan/*/state'
>> - 'echo 0 > /proc/acpi/fan/*/state'
>> (the fan should be that one, which shown 'on' in step 3)
>>
>> 4b. (if step 3 failed) do (as root) 'echo 0 > /proc/acpi/fan/*/state'
>> consequently for each fan device under /proc/acpi/fan/, check the
>> following:
>> - fans start spinning;
>> - fans' states are correct ('cat /proc/acpi/fan/*/state'
>> command)
>>
>> 5. check if the fan(s) start spinning.
>>
>> Please, get back to me with the results, test flow description and
>> commands' outputs.
>>
>> Also, you could try the patches from bugs ##7122, 7570 for 2.6.20-rc3 to
>> see if it help.
>>
>
>any ideas why i have no /proc/acpi/fan/*?
>
>Notebook HP Pavillion dv8230us
>
>--
>[]'s
>Salatiel
>
>"O maior prazer do inteligente é bancar o idiota
> diante de um idiota que banca o inteligente".
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