RELENG_6 power button ignored after halt if ACPI enabled

[Nate Lawson]

Mark Kirkwood wrote:
> I've just upgraded 2 machines to 6.2-PRERELEASE #1: Sat Sep 16 18:31:43
> NZST 2006:
> 
> - Supermicro P3TDER (Serverworks HE-SL Chipset, AMIBOIS)
> - Supermicro P3TDDE (VIA Apollo 266 chipset, AWARD)
> 
> They both exhibit the same problem:
> 
> If ACPI is enabled, shutting down via 'shutdown -h' appears to work
> properly (judging by the console output) - however to actually power off
> the machine the power button must be held until the power supply detects
> that the button has been down for 20s and turns us off.
> 
> Poweroff via 'shutdown -p' and reboot via 'shutdown -r' all work ok.
> 
> If I boot with ACPI disabled, then after 'shutdown -h', pressing the
> power button works in the usual way (i.e powers off after about 1-2
> seconds).
> 
> Given that the two machines are reasonably different, this looks like it
> might be common.
> 
> I've left a verbose dmesg here:
> http://homepages.paradise.net.nz/markir/download/freebsd/dmesg-p3tder-acpi.verbose 
> 
> 
> and acpi dump here:
> http://homepages.paradise.net.nz/markir/download/freebsd/root-p3tder.asl
> 
> 
> Note that these are for the HE-SL chipset system. I'm going to recompile 
> the acpi module with ACPI_DEBUG and see what that produces.

Try setting this sysctl:
sysctl hw.acpi.disable_on_reboot=1

It may be that you need acpi to stop managing your power button after halt.

-- 
Nate