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Date:      Sun, 3 Oct 2010 18:24:29 +1100 (EST)
From:      Ian Smith <smithi@nimnet.asn.au>
To:        "Alexandre \"Sunny\" Kovalenko" <gaijin.k@ovi.com>
Cc:        Matt <sendtomatt@gmail.com>, freebsd-acpi@freebsd.org, Paul B Mahol <onemda@gmail.com>
Subject:   Re: Sleep/Lenovo SL410
Message-ID:  <20101003174833.V62022@sola.nimnet.asn.au>
In-Reply-To: <1286051977.1655.45.camel@RabbitsDen.RabbitsLawn.verizon.net>
References:  <4C732522.1010400@gmail.com> <4CA556EB.902@gmail.com>  <20101001144505.C62022@sola.nimnet.asn.au>  <AANLkTikg-CW-wSiWz7VmtBKFafFkCvXeOMEoRW_U2Wvv@mail.gmail.com>  <20101002142419.G62022@sola.nimnet.asn.au> <1286051977.1655.45.camel@RabbitsDen.RabbitsLawn.verizon.net>

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On Sat, 2 Oct 2010, Alexandre "Sunny" Kovalenko wrote:
 > On Sat, 2010-10-02 at 16:34 +1000, Ian Smith wrote:
 > > On Fri, 1 Oct 2010, Paul B Mahol wrote:
 > >  > On 10/1/10, Ian Smith <smithi@nimnet.asn.au> wrote:
 > >  > > On Thu, 30 Sep 2010, Matt wrote:
 > >  > >  >  Success!
[..]
 > >  > >  > acpiconf -s4 causes shutdown, does not resume on power on.
 > >  > >
 > >  > > Suspend To Disk is not expected to work; your laptop (like most) has no
 > >  > > BIOS support for S4, as per your hw.acpi.s4bios: 0
 > >  > 
 > >  > Suspend to disk does not work because FreeBSD does not support it.
 > >  > (s4bios is irrelevant here)
 > > 
 > > Ah, when did that break?  It worked fine on my old Compaq 1500c ('99!) 
 > > on FreeBSD 5.5, s4bios=1, though for another reason I couldn't usually 
 > > run ACPI on it, and APM STD and STR work. I found a message from someone 
 > > with a Dell Inspiron something a few years ago reporting S4BIOS working, 
 > > modulo a fixable screen resume issue that he had resuming from S3 also.

 > On my IBM ThinkPad 701C "Butterfly" BIOS-supported suspend-to-disk broke
 > somewhere between 4.11 and 5.2.1. Upon resume in 5.2.1 system would go
 > into endless loop of ata timeouts and never come back.

I haven't tried since 5.5.  Have you tried it again with 7|8|9?

I realise that machines supporting S4BIOS are becoming rarities (a bit 
like real modems vs 'winmodems' I guess) but has anyone heard of anyone 
succeeding - or failing - to hibernate with machines that used to work?  
I'm pretty sure I'd have noticed posts/PRs re this, in acpi@ at least.

The 1500c is still in service, still using APM, so I can't pull it down 
to test either this or its big issue with ACPI back then (not switching 
to battery power on loss of AC - clunk!)  Maybe when I get a Soekris or 
similar box going, paqi can be put out to pasture for its 12th birthday, 
like an old working horse :)

cheers, Ian



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