Re: Thinkpad T410: resume broken

On Fri, May 23, 2014 at 10:00:30AM -0400, John Baldwin wrote:
> On Wednesday, May 21, 2014 3:43:49 pm Jan Henrik Sylvester wrote:
> > Looking through dmesg, it seems that other USB devices (build-in) are
> > reappearing (Qualcomm Gobi 2000, Broadcom Bluetooth Device) after
> > resume, just not the mouse.
> > 
> > Are these lines likely related?
> > 
> > pci0: failed to set ACPI power state D2 on \134_SB_.PCI0.PEG_:
> > AE_BAD_PARAMETER
> > pci0: failed to set ACPI power state D2 on \134_SB_.PCI0.EXP1:
> > AE_BAD_PARAMETER
> > pci0: failed to set ACPI power state D2 on \134_SB_.PCI0.EXP2:
> > AE_BAD_PARAMETER
> > pci0: failed to set ACPI power state D2 on \134_SB_.PCI0.EXP4:
> > AE_BAD_PARAMETER
> > pci0: failed to set ACPI power state D2 on \134_SB_.PCI0.EXP5:
> > AE_BAD_PARAMETER
> 
> These are probably not related.  These man that your BIOS explicitly told
> the OS to power down these devices (PEG_ is probably your GPU, and EXP[1-5]
> are probably PCI-PCI bridges that represent the downstream ports of your
> PCI-e root complex) in the D2 state when suspending, but the devices don't
> actually support D2 (most PCI devices only support D0 (full on) and D3
> (full off)).

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)?  Thanks,

./danfe
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