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Date: Fri, 4 Jan 2008 19:13:20 +1100 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: Norberto Meijome <freebsd@meijome.net>
In-Reply-To: <20080104123428.3292da81@meijome.net>
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Cc: acpi@freebsd.org, questions@freebsd.org
Subject: Re: how to suspend/wake-up a FreeBSD machine?
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On Fri, 4 Jan 2008, Norberto Meijome wrote:
 > On Sun, 30 Dec 2007 11:51:41 +0100
 > Henrik Brix Andersen <brix@FreeBSD.org> wrote:
 > 
 > > That depends largely on the hardware - on e.g. ThinkPads you need to
 > > press the 'Fn' button to wake up the laptop after sleep.
 > 
 > hmm i think it's not so much the Fn key, u need to do anything that
 > triggers an ACPI event in the BIOS - like opening the lid , or
 > pressing Fn. I *think* 'thinkVantage' blue btn should work too. 

On my T23 I have suspend/wake on lid switch off (in BIOS), preferring to
have to use the Fn key to wake.  No other keys do that on mine including
the ThinkPad key, so then called.

While consulting 'sysctl hw.acpi' about that I see:
hw.acpi.lid_switch_state: NONE
which I assume reflects my don't-do-that BIOS setting.

And confirming:
# sysctl hw.acpi.lid_switch_state=1	# (or =0)
hw.acpi.lid_switch_state: NONE
sysctl: hw.acpi.lid_switch_state: Invalid argument

which makes sense and was expected .. except that since doing that,
closing the lid while awake still just blanks screen, but opening lid
now wakes the laptop from sleep!  No big deal, just slightly odd .. 

Cheers, Ian