On Mon, Oct 21, 2019 at 4:09 PM Mika Westerberg <mika.westerberg@xxxxxxxxx> wrote: > > On Mon, Oct 21, 2019 at 03:54:09PM +0200, Karol Herbst wrote: > > > I really would like to provide you more information about such > > > workaround but I'm not aware of any ;-) I have not seen any issues like > > > this when D3cold is properly implemented in the platform. That's why > > > I'm bit skeptical that this has anything to do with specific Intel PCIe > > > ports. More likely it is some power sequence in the _ON/_OFF() methods > > > that is run differently on Windows. > > > > yeah.. maybe. I really don't know what's the actual root cause. I just > > know that with this workaround it works perfectly fine on my and some > > other systems it was tested on. Do you know who would be best to > > approach to get proper documentation about those methods and what are > > the actual prerequisites of those methods? > > Those should be documented in the ACPI spec. Chapter 7 should explain > power resources and the device power methods in detail. either I looked up the wrong spec or the documentation isn't really saying much there.