RELENG_6 power button ignored after halt if ACPI enabled

[Mark Kirkwood]

Nate Lawson wrote:
> 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.
> 

Thanks Nate - that seems to do the trick.

cheers

Mark