Hi Bjorn, > On Jan 28, 2019, at 3:51 PM, Kai Heng Feng <kai.heng.f...@canonical.com> > wrote: [snipped]
>> If I understand correctly, the bugzilla lspci >> (https://bugzilla.kernel.org/attachment.cgi?id=280691) was collected >> at point 8, and it shows PME_Status=1 when it should be 0. >> >> If we write a 1 to PME_Status to clear it, and it remains set, that's >> obviously a hardware defect, and Intel should document that in an >> erratum, and a quirk would be the appropriate way to work around it. >> But I doubt that's what's happening. > > I’ll ask them if they can provide an erratum. Got confirmed with e1000e folks, I219 (the device in question) doesn’t really support runtime D3. I also checked the behavior of the device under Windows, and it stays at D0 all the time even when it’s not in use. So I sent a patch [1] to disable it. [1] https://lkml.org/lkml/2019/2/2/200 Kai-Heng
