> But Windows has done the same. I guess ACPI is a mess.
Of course, you don't mention macOS. I never had issues with suspend on any of my MBPs. If I did, it turned out that was my battery got empty, and the few times this happened I did think about suspend failing. Turned out I was wrong.
Look, I'm sure the macOS implementation of ACPI is great.
I said "I GUESS ACPI is a mess", because most implementations I've used (and I've only used it; I know nothing low-level about it at all) have had some problem or another.
How wrong of me not to have any experience with your preferred platform, and leave it out of the discussion.
Of course, you don't mention macOS. I never had issues with suspend on any of my MBPs. If I did, it turned out that was my battery got empty, and the few times this happened I did think about suspend failing. Turned out I was wrong.