Re: [Linux-ia64] ACPI power button events

["KOCHI, Takayoshi" <t-kouchi@mvf.biglobe.ne.jp>]

> > > Is pressing the power button on a Big Sur workstation supposed to write
> > > anything to /proc/acpi/event?  It doesn't seem to on my system.
> > 
> > I tested the same and got the same result.
> > I suppose BigSur doesn't support the button feature in its
> > firmware.
> > 
> > If it does, you should see "ACPI: Power Button (FF) found" in
> > boot message and you will see a /proc/acpi/button directory.
> 
> Yes, I see this message upon boot, and the /proc/acpi/button directory
> is created.
> 
> > If the button event is properly processed, you can see
> > "button power 00000080 00000000"
> > line when you cat /proc/acpi/event.
> 
> Nothing seems to get written to the event file.

Hmm...
Can you check /proc/interrupts and see any interrupts on
acpi line?

Oh well, our BigSur says

 39:	0	0   IO-SAPIC-edge  acpi

But ACPI specification says the SCI (ACPI interrupt) should be
active low, level and shareable.  I'll look into it...

Thanks,
-- 
KOCHI Takayoshi <t-kouchi@cq.jp.nec.com/t-kouchi@mvf.biglobe.ne.jp>