From owner-freebsd-acpi@FreeBSD.ORG  Mon Feb 28 16:07:52 2005
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Date: Mon, 28 Feb 2005 08:07:30 -0800
From: Nate Lawson <nate@root.org>
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To: Gerhard Schmidt <estartu@augusta.de>
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cc: freebsd-acpi@freebsd.org
Subject: Re: wakeonlan problem with FreeBSD
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Gerhard Schmidt wrote:
> Hi,
> 
> I have a problem with FreeBSD and wake on lan. I have an asrock K8S8X
> mainboard and try to use the wakeonlan feature to start the computer. 
> I have set up the bios to enable WOL. Everything is working when I 
> shutdown the computer from WinXP. When I turn the computer of from 
> FreeBSD using halt -p oder apciconf -s5 WOL doesn't work. Any suggestions 
> how I can enable WOL when freebsd does the poweroff. 

There is also a per-device sysctl of the form:

dev.DEVICE.%d.wake

Setting it to 1 notifies the BIOS that you wish for this device to be 
able to wake the system.  Setting it to 0 disables this.  Give it a try, 
however, not every device is properly exported to ACPI by the BIOS so it 
may not be available.  Also, it may require some per-device support, not 
just acpi.  I haven't really done much more work on this other than 
making sure the acpi part works as the spec says.

-- 
Nate