Re: Gateway 200X (again) - No power button events

[Greg Sarjeant <greg-QNIYhHqVzB9kr2E5YSwMOQ@public.gmane.org>]

OK, I found the Notify call that I was looking for. It was in the
EmbeddedControl region, and they don't specify the \_SB. prefix:

   Method (_Q50, 0, NotSerialized)
   {
       Notify (PWRB, 0x80)
   }

So, it looks like it is specified in the DSDT. I'm not sure why I don't
get an event when I press the button. I do get events from the sleep
button, but the two are declared somewhat differently. Here they are for
comparison:

        Device (SLPB)
        {
            Name (_HID, EisaId ("PNP0C0E"))
            Method (_STA, 0, NotSerialized)
            {
                Return (0x0F)
            }
        }

        Device (PWRB)
        {
            Name (_HID, EisaId ("PNP0C0C"))
            Name (_PRW, Package (0x02)
            {
                0x1D, 
                0x04
            })
        }


Thanks again,
  Greg


On Mon, 2004-01-19 at 12:34, Greg Sarjeant wrote:
> Hi,
> 
>     I have another question about my Gateway 200X. ACPI is working much
> better now, but I just started playing with the power button, and it
> turns out that I am not getting any events from it. I looked through the
> DSDT, and could not find any Notify (\SW.PWRB, 0x80) statements for it,
> so I imagine that that is the problem. Here (I think) are the relevant
> DSDT sections:
> 
> 
>     Scope (_GPE)
>     {
>         Method (_L05, 0, NotSerialized)
>         {
>             Notify (\_SB.PCI0.MODM, 0x02)
>             Notify (\_SB.PWRB, 0x02)
>         }
> 
>         Method (_L0B, 0, NotSerialized)
>         {
>             Notify (\_SB.PCI0.PCIB, 0x02)
>             Notify (\_SB.PWRB, 0x02)
>         }
> 
>         Method (_L1D, 0, NotSerialized)
>         {
>             Store (\_SB.PHS1 (0x8E, Zero), Local0)
>             If (LEqual (Local0, One))
>             {
>                 Notify (\_SB.PWRB, 0x02)
>             }
> 
>             If (LEqual (Local0, 0x02))
>             {
>                 Notify (\_SB.PWRB, 0x02)
>             }
>         }
>     }
> 
> 
>     Device (PWRB)
>     {
>         Name (_HID, EisaId ("PNP0C0C"))
>         Name (_PRW, Package (0x02)
>         {
>             0x1D, 
>             0x04
>         })
>     }
> 
> 
> Do I have to add this Notify statement in the _GPE block? I'm also a bit
> confused by the "Notify (\_SB.PWRB, 0x02)" lines. From the spec, I
> thought that 0x80 and 0x200 were the expected values from Notify for the
> power button. Am I missing something here?
> 
> Also, the BIOS does not supply an ECDT. I am using the patch at bug 1690
> to get around this, could that be related? 
> 
> The power button does shut the macine down in Windows XP. I have tried
> passing acpi_os_name="Microsoft Windows XP" to the kernel without
> success. I did that because I noticed lines like this:
> 
>        If (LEqual (SizeOf (_OS), 0x14))
> 
> In the PCI0 device block after seeing the S3D method emails. I haven't
> really had the chance to dig into what's going on there yet, so it was a
> bit of a blind stab.
> 
> For reference, the complete DSDT is posted at
> http://www.morningdave.org/acpi/dsdt.dsl
> 
> 
> Thanks again for any help,
> Greg
> 
> 
> 
> 
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