Hi Thomas, On Tue, Jun 27, 2023 at 11:53:33AM +0200, Thomas Witt wrote: > On 27/06/2023 08:24, Mika Westerberg wrote: > > Commit a7152be79b62 ("Revert "PCI/ASPM: Save L1 PM Substates Capability > > for suspend/resume"") reverted saving and restoring of ASPM L1 Substates > > due to a regression that caused resume from suspend to fail on certain > > systems. However, we never added this capability back and this is now > > causing systems fail to enter low power CPU states, drawing more power > > from the battery. > > Hello Mika, > > I am sorry, but your patch (applied on top of master) triggers the exact > same behaviour I described in > <https://bugzilla.kernel.org/show_bug.cgi?id=216877> (nvme and wifi become > unavailable during suspend/resume) Thanks for testing! Can you provide the output of dmidecode from that system? We can add it to the denylist as well to avoid the issue on your system.