Ubuntu
linux package

  1. Bug #1803179
  2. Comment #24

Comment 24 for bug 1803179

Revision history for this message
In , peter (peter-linux-kernel-bugs) wrote :

(In reply to Rafael J. Wysocki from comment #15)
> One difference between Windows 10 and Windows 7 I know about is that Windows
> 10 supports power management of PCIe ports and I bet the ASL in comment #7
> is needed to cope with that.
>
> That PCIe ports PM appears to be different from what we're going to do in
> 4.8+, though, which may be the source of the problem.

The invoked ACPI methods (_ON/_OFF on the power resource) are matching between Linux and Windows 10. From a packet capture with WinDbg kernel debugger:
https://lekensteyn.nl/files/p651ra-acpi-debug/acpi-evals.txt

Maybe some extra modifications are needed to the PCIe registers? (No idea, just guessing.)