Getting S3 Suspend working on Alder Lake CPUs

Have searched and come across this Qubes issue:

I have checked that the suspend state is ‘deep’ not ‘s2idle’ but echo mem > /sys/power/state results in a sleeping system which won’t wake unless it’s power cycled (X1 Carbon 10th Gen with i7-1260P running a 6.1 series kernel-latest in Dom0)

It seems others have got resume from suspend working with Alder Lake, what am I missing?


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