Thanks for that link. My ThinkPad X1 Carbon (gen 7) BIOS supported choosing Windows 10 or Linux sleep mode - I switched to "Linux mode" and now I have S3 sleep.

Thanks for that link. My ThinkPad X1 Carbon (gen 7) BIOS supported choosing Windows 10 or Linux sleep mode - I switched to "Linux mode" and now I have S3 sleep. We'll see if that fixes the issue. I've battled this for a long time. The prospect of having my laptop be and stay charged is exciting.