Re: Thinkpad T410: resume broken

On Wednesday, May 21, 2014 3:43:49 pm Jan Henrik Sylvester wrote:
> On 05/21/2014 21:22, Hans Petter Selasky wrote:
> > On 05/21/14 21:16, Jan Henrik Sylvester wrote:
> >> Unfortunately, my USB mouse does not work anymore: After the first
> >> resume, it took a few seconds until it worked again (the build in
> >> touchpad was back immediately). After the second resume, it would not
> >> work anymore at all, even after reconnecting it to a different EHCI
> >> port. It does work at a XHCI, though, until the next resume. Anyhow,
> >> this is obviously not related to the original problem.
> > 
> > Hi,
> > 
> > USB controller are being reset at resume, so I think this indicates a
> > more fundamental PCI/BUS problem.
> 
> 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)).

-- 
John Baldwin
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