http://bugzilla.kernel.org/show_bug.cgi?id=8850





------- Comment #30 from [EMAIL PROTECTED]  2007-10-18 07:47 -------
System just booted, the fan is on.

laptop rikz # cat /proc/acpi/fan/FAN/state
status:                  off
laptop rikz # echo 3 > /proc/acpi/fan/FAN/state
/* the fan is still on */
laptop rikz # cat /proc/acpi/fan/FAN/state
status:                  off
laptop rikz # echo 0 > /proc/acpi/fan/FAN/state
/* fan actually stops after executing this command */
laptop rikz # cat /proc/acpi/fan/FAN/state
status:                  on
laptop rikz # echo 3 > /proc/acpi/fan/FAN/state
/* fan is still stopped */
laptop rikz # cat /proc/acpi/fan/FAN/state
status:                  off

now when CPU temperature reaches 55C the fan starts automatically, but its
state in /proc/acpi doesn't change.

I can force fan to start by executing
echo 0 > /proc/acpi/fan/FAN/state
it runs for a while and then stops. I can force it to start again by executing
echo 3 > /proc/acpi/fan/FAN/state
echo 0 > /proc/acpi/fan/FAN/state

When the fan is turned on and the CPU temp is low, I can force it to stop by
executing
echo 3 > /proc/acpi/fan/FAN/state

Sorry for such a big message but I don't really know which cases should I
mention.


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