Re: My AlderLake Dell (XPS-9320) needs these patches to get full standby/low-power modes

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On Mon, 6 Nov 2023, Bjorn Helgaas wrote:

> > I'd bisected it to the following commits (in this order):
> > 4ff116d0d5fd PCI/ASPM: Save L1 PM Substates Capability for suspend/resume
> > 5e85eba6f50d PCI/ASPM: Refactor L1 PM Substates Control Register programming
> > 1a0102a08f20 UBUNTU: SAUCE: PCI/ASPM: Enable ASPM for links under VMD domain
> > 47c7bfd31514 UBUNTU: SAUCE: PCI/ASPM: Enable LTR for endpoints behind VMD
> > 154d48da2c57 UBUNTU: SAUCE: vmd: fixup bridge ASPM by driver name instead

> Thanks for these.  You don't happen to have URLs for those Ubuntu
> commits, do you?

> Thank you very much for raising this again.

They've been really great for battery life on my laptop, so I'd like to help
these in some form get upstreamed (provided there's no bad side-effects, of


Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA

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