Re: clear/enable power button on resume

[Sebastian Seifert <lathander-Mmb7MZpHnFY@public.gmane.org>]

On Sun, Mar 07, 2004 at 09:02:46PM +0100, Timo Hoenig wrote:
> Thanks. But I don't use the power event anyway. As long as acpi works I
> am happy with suspend / resume. rm -rf /etc/acpi/events/powerbtn did it
> for me.

That's what I did, too. On my system, it happens after S3 sleep (I
haven't tested S1/S2). 

And the power button is the only way to power on after S3, since all
other wake-capable devices aren't enabled.

> Isn't the acpi spec telling whether the pressing of the power button
> after suspending has to be reported to the OS?

The ACPI spec says that the pressing of a button (e.g. the power button)
that leads to a wake event is reported differently to the OS. The Notify
value (second column in output of /proc/acpi/event) of a regular button event 
is 0x80, that of a wake event is 0x02. Nevertheless, on my system, 0x80
is generated for a power button wake. Strange.

Sebastian


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