Re: how to turn off devices that monitor sensors

[Henry <nbsd4ever%gmail.com@localhost>]

Thank you for the ideas.  The manufacture date of this HP Pavillion
Notebook 15-au123d was 07/01/2017.  NetBSD is installed UEFI.

I tried `boot -2' but the startup stopped at the following.  I don't
know how to proceed.
boot device: <unknown>
root device:

The machine works without any problem, including power-off shutdown,
with Windows 10.  I swapped out the harddisk that Win 10 was on with
an SSD, onto which I installed NetBSD.  Other than `/sbin/shutdown -p`
not working (which however is fatal to my use of the machine as a
remote workstation), things seem to be working well (with current, not
under 9.2 STABLE).

Henry

2022年6月14日(火) 21:04 Robert Elz <kre%munnari.oz.au@localhost>:
>
> You might try "boot -2 netbsd" to disable ACPI completely,
> in which case NetBSD would not be able to request ACPI S5 state
> to shut down and power off (would need to use older BIOS
> interfaces).
>
> If your system is an older one (HP model numbers mean nothing
> to me) then it shoukd work OK without ACPI.
>
> You could also confirm whether other OS's are able to
> power off that particular system (the test needs to be
> of that exact system, as minor variations like what BIOS
> rev is installed, what other hardware, and the BIOS
> config all could alter the results.  Installing other
> systems should not be needed, "live" cd/dvd boots (or
> USB stick) should be sufficient to test this.
>
> But testing NetBSD with ACPI disabled first is the quick
> test to perform.
>
> kre