http://bugzilla.kernel.org/show_bug.cgi?id=8850
[EMAIL PROTECTED] changed:
What |Removed |Added
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Attachment #12667|0 |1
is obsolete| |
Attachment #13105|0 |1
is obsolete| |
------- Comment #25 from [EMAIL PROTECTED] 2007-10-11 19:54 -------
Created an attachment (id=13122)
--> (http://bugzilla.kernel.org/attachment.cgi?id=13122&action=view)
DSDT-3
new DSDT to override.
the new _STA mathod can help us to find out which bit stands for the PFAN
status.
Method (_STA, 0, NotSerialized)
{
Return (\_SB.PCI0.PIB.PMRD(0xFF))
}
I think you need to do the following test:
1.don't override the active trip point.
2.echo 0xffff0000 >/sys/module/acpi/parameters/debug_layer
echo 0x1f >/sys/module/acpi/parameters/debug_level
3.dmesg -c
4.cat /proc/acpi/power_resource/PFAN/state for several times
5.if the fan is off, echo 0 > /proc/acpi/fan/FAN/state
6.cat /proc/acpi/power_resource/PFAN/state once you hear the fan state changes.
The main idea is that PFAN is actually on when fan is on and PFAN is off
when fan is off.
we can get the value of \_SB.PCI0.PIB.PMRD(0xFF)) and compared it with the
actually fan state so that we can find out which bit stands for the PFAN state.
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