Re: ACPI: getting front-panel power button to cause shutdown

[David Murray <dave@xxxxxxxxxxxxxxxxxx>]

Hi Tomokazu,

On 28/11/06 8:59 am, YONETANI Tomokazu wrote:

> On Sat, Nov 25, 2006 at 08:04:26PM +0000, David Murray wrote:
> > I'm trying to get the front-panel power button to shut the system 
> > down (cleanly).
>
> Pressing the power button delivers an interrupt to the acpi driver... 
> so the first step is to see if an interrupt is delivered to the acpi 
> driver.
> $ vmstat -i |grep acpi
> (press power button)
> $ vmstat -i |grep acpi

Thanks for the suggestion.  The interrupt count stays firmly at zero, so 
it looks like I see the same as you do for machines with this problem.

I'm not sure what has to be right to cause the interrupt to be generated 
- presumably there's some sort of interaction between the driver and the 
ASL.  I'll try fiddling with the BIOS settings, but I don't think 
there's much I can change.  I seem to remember that setting PnP OS to 
"yes" made things much worse!


--
Dave Murray