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Date:      29 Aug 2004 01:02:23 +0200
From:      Christian Laursen <xi@borderworlds.dk>
To:        freebsd-current@freebsd.org
Subject:   Re: ACPI problem with 5.3-BETA1 on Toshiba Portege 3110CT
Message-ID:  <86k6vizx1c.fsf@borg.borderworlds.dk>
In-Reply-To: <868yc4eckw.fsf@borg.borderworlds.dk>
References:  <868yc4eckw.fsf@borg.borderworlds.dk>

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Christian Laursen <xi@borderworlds.dk> writes:

> Today I upgraded my laptop to FreeBSD 5.3-BETA1.
> 
> When I boot it with ACPI enabled the fan is running constanly,
> even though the machine is completely idle.

I now made some progress on this.

I found out that in single user mode, the fan stop when the machine
is idle, even with acpi enabled.

It turns out that hw.acpi.cpu.cx_lowest gets changed from C1 to C2
when going to multi user.

If I set it back to C1 the fan will stop and only start again when
the machine gets busy.

However, if I pull the power, hw.acpi.cpu.cx_lowest changes to C2,
and the fan starts running againg and will not stop, until I change
it back to C1 manually.

Does this make any sense?

-- 
Christian Laursen



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