how to suspend/wake-up a FreeBSD machine?

[Ian Smith]

On Fri, 4 Jan 2008, John Baldwin wrote:
 > On Friday 04 January 2008 03:13:20 am Ian Smith wrote:
 > > On Fri, 4 Jan 2008, Norberto Meijome wrote:
 > >  > On Sun, 30 Dec 2007 11:51:41 +0100
 > >  > Henrik Brix Andersen <brix at 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.
 > 
 > No, that's the FreeBSD default.

Um, der .. I see that and other sysctls are in acpi(4) now, but weren't
in my (oldish) 5.5-STABLE nor 6.1-RELEASE.  Time for upgrades for sure! 

 > > 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
 > 
 > This is because this sysctl is not an on/off, but it takes an Sx state to 
 > suspend to when you close the lid.  So if you set this to S1 it will try to 
 > enter S1 when you close the lid, etc.  For example:
 > 
 > sysctl hw.acpi.lid_switch_state=S3
 > 
 > Would make it enter S3 when you closed the lid.

Thanks John.  S3 works on mine, but S1 doesn't.  Didn't try S5 :) but
NONE is really what I want there anyway.

cheers, Ian