??? wrote:

> do you mean that i should compile the acpictn device to the
> kernel.default 5.2 kernel have acpi device, but without acpibtn.
> 

If your dmesg doesn't show a acpibtn device, apart from checking hardware 
setup (e.g. BIOS settings), I'm out of ideas.

> ------------------ Original ------------------From:
>  "Remco"<re...@d-compu.dyndns.org>;Date:  Fri, Nov 23, 2012 04:00 AMTo:
>  "眼镜蛇"<cob...@qq.com>; "misc"<misc@openbsd.org>; Subject:  Re: how
> to make power off button work like halt -p
> ??? wrote:
> 
>> i need to install openbsd on a blind computer(without monitor).so i
> need
>> to press power off button to shutdown the computer.i know that use ssh
> is
>> a right way. but press power off is more effective way.
>>
>>
>>
>>
>>
>> in the version 5.2, i just press power off, and the computer shutdown
>> directly without clean the file system. i think this would do harm to
> the
>> database server. i want to know how to make power off button work link
>> halt -p command.
> 
> You may need to enable something in your BIOS along the lines of "press
> the
> power button for 4 seconds in order to power off".
> 
> From the software perspective, I think you also need the acpibtn(4)
> device.
> (check your dmesg for that)

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