Well, I retract my vote for the feature request (for BIOS to prevent modern standby).
On further reading, I’ve found several claims (1, 2, 3, 4) that Intel and AMD have removed support for S3 sleep in their newer processors/platforms, and that supposedly S0iX states (“modern standby”) are to be its replacement. I’ve not yet found a clear admission/explanation of that from Intel or AMD, though.
However, it’s so obviously not a suitable replacement. No one at Intel ever put their laptop to sleep and put it in their backpack when they were considering these changes? Standby and sleep do not mean the same thing.
I don’t need “instant on” from a proper “sleep” state. What I do want from it:
- Silent and safe to block airflow
- All moving components stop - especially fans
- Quicker entry/exit vs. hibernate (S4 / suspend to disk)
- Wakes only when I tell it to; not when the OS does because it wants to do who knows what tasks that it just. must. do. immediately–NO, they can wait until I wake it
(Modified from source.)
I don’t need, want, or expect my laptop to behave like a mobile device. It still doesn’t, and can’t, even with “modern standby”. I’m not saying there’s no use for it, but at least Microsoft’s implementation really sucks, in that sleep isn’t sleep anymore.
I suspect/hope that various Linux distros have saner “sleep” implementations, i.e. enter and stay in S0i3, fans off, until actually awoken by the user.
[/rant]