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Date:      Mon, 24 May 2004 00:04:35 -0700 (PDT)
From:      Nate Lawson <nate@root.org>
To:        "Oliver B. Fischer" <plexus@snafu.de>
Cc:        acpi@freebsd.org
Subject:   Re: Problems with S3 on ThinkPad R51 1830
Message-ID:  <20040524000254.L67471@root.org>
In-Reply-To: <40B2EAD4.3010709@snafu.de>
References:  <40B250A6.3050709@snafu.de> <20040523210006.Y66525@root.org> <40B2EAD4.3010709@snafu.de>

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On Tue, 25 May 2004, Oliver B. Fischer wrote:
> Nate Lawson wrote:
> > UHCI can't suspend/resume correctly.  It's a driver issue.
>
> Does it mean that my usb subsystem and S3 can't go on with each other?

Don't load usb if using suspend/resume.

> > You can save power by modifying the performance/economy values from
> > /etc/defaults/rc.conf
>
> I took a look at defaults/rc.conf and didn't find/see a value, that
> seems to be responsible for performance or economy. Please, can you give
> me a hint? :)

/etc/defaults/rc.conf:
performance_cx_lowest="HIGH"            # Online CPU idle state
performance_throttle_state="HIGH"       # Online throttling state
economy_cx_lowest="LOW"                 # Offline CPU idle state
economy_throttle_state="HIGH"           # Offline throttling state

You could make your system run cooler while on AC power with:
echo 'performance_cx_lowest="LOW"' >> /etc/rc.conf

You can also use literal values, i.e. "C3"

-Nate



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