Sleep/Lenovo SL410

[Alexandre "Sunny" Kovalenko]

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 at nimnet.asn.au> wrote:
>  > > On Thu, 30 Sep 2010, Matt wrote:
>  > >  >  Success!
>  > >  >
>  > >  > After setting every possible suspend/resume sysctl,
>  > >  > "sysctl hw.pci.do_power_resume=0"
>  > >  > allowed suspend and resume. Still beeps 1-3 times before suspend, with
>  > > rapid
>  > >  > sleep light flashing until suspend complete.
>  > >
>  > > Interesting; $someone may document do_power_resume a bit more $someday?
>  > It is already documented.
> 
> Well, there's all of:
> 
> t23% sysctl -ad | grep do_power_resume
> hw.pci.do_power_resume: Transition from D3 -> D0 on resume.
> 
> unless you mean RTFS :) where there's:
> 
> t23% sh -c 'find /usr -type f -exec grep -Hi do_power_resume {} \; 2>/dev/null'
> /usr/src/sys/dev/pci/pci.c:static int pci_do_power_resume = 1;
> /usr/src/sys/dev/pci/pci.c:TUNABLE_INT("hw.pci.do_power_resume", &pci_do_power_resume);
> /usr/src/sys/dev/pci/pci.c:SYSCTL_INT(_hw_pci, OID_AUTO, do_power_resume, CTLFLAG_RW,
> /usr/src/sys/dev/pci/pci.c:    &pci_do_power_resume, 1,
> /usr/src/sys/dev/pci/pci.c:     if (pci_do_power_resume)
> /usr/src/sys/dev/pci/pci.c:     if (pci_do_power_resume)
> Binary file /usr/obj/usr/src/sys/GENERIC/pci.o matches
> Binary file /usr/obj/usr/src/sys/GENERIC/kernel matches
> Binary file /usr/obj/usr/src/sys/GENERIC/kernel.debug matches
> Binary file /usr/obj/usr/src/sys/GENERIC/kernel.symbols matches
> 
> .. including manpages, handbook, faq, articles etc.  Is that it?  I know 
> what D3->D0 means but it hardly describes when/how/why to {,not} use it, 
> leaving me surprised it would make S3 resume work in this case, and why?
> 
> 8.1-STABLE FreeBSD 8.1-STABLE #0: Sun Sep  5 15:53:00 EST 2010 GENERIC i386
> 
>  > >  > Kernel conf is attached.
>  > >  > World built from last Friday's CVS, -CURRENT
>  > >  >
>  > >  > acpiconf -s3 works perfectly from console
>  > >  > previously opened windows are garbled until refresh in X
>  > >
>  > > Some thinkpads have responded positively in this regard to setting
>  > > hw.syscons.sc_no_suspend_vtswitch=1
>  > >
>  > >  > 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.

-- 
Alexandre Kovalenko (Олександр Коваленко)



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