Re: Thinkpad T410: resume broken

On Thursday, February 18, 2016 10:56:29 PM Alexey Dokuchaev wrote:
> On Thu, Feb 18, 2016 at 06:55:03AM -0800, John Baldwin wrote:
> > On Thursday, February 18, 2016 08:37:38 PM Alexey Dokuchaev wrote:
> > > I've started to observe similar lines in the logs after updating to
> > > fresh -CURRENT, upon resume (on a different laptop though, not T410):
> > > 
> > >   pcib0: failed to set ACPI power state D2 on \_SB_.PCI0: AE_BAD_PARAMETER
> > >   acpi0: cleared fixed power button status
> > > 
> > > If these messages are legit, I'm wondering why I didn't see them on 8.4,
> > > and if it might affect suspend/resume sequence (broken right now)?
> > 
> > [...] Your BIOS said "please put this device in D2 during suspend" and your
> > device's capabilities said "I don't support D2".  You can confirm this by
> > looking up the _S3 method of your _SB_.PCIO device to find out what state is
> > requested during suspend and then looking at 'pciconf -lc pci0:0:0' to see
> > what D states are listed as supported.
> 
> This?:
> 
>     Scope (\_SB)
>     {
>         Name (ECOK, 0x00)
>         Device (PCI0)
>         {
>             Method (_S3D, 0, NotSerialized)  // _S3D: S3 Device State
>             {
>                 Return (0x02)
>             }
>     ...

Yes, this says "please use D2 when going to S3".

> # pciconf -lc pci0:0:0
> hostb0@pci0:0:0:0:      class=0x060000 card=0x83191033 chip=0x25908086 rev=0x04 hdr=0x00
>     cap 09[e0] = vendor (length 9) Intel cap 2 version 1

Humm, perhaps PCI0 is not at 0:0.  Can you find the _ADR method for _SB_.PCI0?
That contains the "slot" and "function" as two words, e.g. 0x10002 would
correspond to the 'pci0:1:2' device (or possibly pci0:2:1, don't recall the
order off the top of my head).

-- 
John Baldwin
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