atom feed6 messages in org.freebsd.freebsd-mobileActivating acpi on a thinkpad R51
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vittorioApr 20, 2006 4:31 pm 
[LoN]KamikazeApr 20, 2006 4:43 pm 
Gregers PetersenApr 21, 2006 6:30 am 
[LoN]KamikazeApr 21, 2006 7:02 am 
Kevin ObermanApr 21, 2006 4:24 pm 
Fabian KeilApr 22, 2006 12:37 pm 
Subject:Activating acpi on a thinkpad R51
From:Kevin Oberman (ober@es.net)
Date:Apr 21, 2006 4:24:14 pm
List:org.freebsd.freebsd-mobile

Date: Fri, 21 Apr 2006 09:02:39 +0200 From: "[LoN]Kamikaze" <LoN_@gmx.de> Sender: owne@freebsd.org

Gregers Petersen wrote:

vittorio wrote:

I wonder what steps should I take using the battery to make my thinkpad R51 go to stand-by or suspend (by the way, what's the difference between suspend & stand-by?) when I close the lid and what should I do to resume the suspended session?

If you take a quick look through the archives, of the last 3 months, you will find a thread which discusses this problem --> there is a patch for the agp

http://www.FreeBSD.org/~jhb/patches/agp_cvs.patch

, which after some re-compile business makes it possible to resume from suspend + there is also a dpms patch which increases the suspend time (battery time).

http://people.freebsd.org/~jhb/patches/acpi_video_dpms.patch

I'm myself using a R51 ...

Will this patch ever get into stable?

For systems with Radeons, it is probably better to use radeontool from ports. It reportedly reduces power consumption below the levels seen with the DPMS patch and also allows you to power down the DAC for the video connector.

You do need to add it to rc.suspend and (most important) to rc.resume.

I just add: if [ -x /usr/local/bin/radeontool ]; then radeontool light off|on radeontool dac off|on fi depending on whether it's the suspend or the resume file.

If you are on better, you probably want to simply leave the DAC off, though. You should be able to do this with devd, but I have not tried it.

-- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: ober@es.net Phone: +1 510 486-8634