Re: DPMS with ACPI

[Marc Giger <gigerstyle-OI3hZJvNYWs@public.gmane.org>]

Hi Thomas,

On Sat, 7 Dec 2002 16:57:27 +0000
Thomas White <taw27-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org> wrote:

> On Sat, 7 Dec 2002 17:11:40 +0100
> Marc Giger <gigerstyle-OI3hZJvNYWs@public.gmane.org> wrote:
> 
> > I've seen that DPMS needs an APM conform BIOS. The call is made trough
> > /dev/apm_bios. Is there an equivalent interface for ACPI? How can I
> > use the DPMS feature with ACPI? This would be a nice feature for my
> > Laptop.
> 
> Proabably not the most helpful of comments... but DPMS seems to work

It's ok:-)

> fine for me with ACPI rather than APM running things - I definitely
> don't have /dev/apm_bios, but "xset dpms force standby" works properly,
> to put the screen to sleep.

On my Laptop not:-( 

It's also a Vaio GR114EK. This Vaio is a difficult case:-))

What i get with "xset dpms force standby" is:

X Error of failed request: BadMatch (invalid parameter attributes)
  Major opcode of failed request: 140 (DPMS)
  Minor opcode of failed request: 6 (DPMSForceLevel)
  Serial number of failed request: 10
  Current serial number in output stream: 12

I have activated the DPMS in XF86Config with 'Option "DPMS"'
What I get is:

....
Option "DPMS" is not used
<snip>
Open APM failed (/dev/apm_bios) (No such device)
...

> 
> ( Sony Vaio FX601 with Linux 2.4.19 + ACPI-20020821 and XFree86 4.2.0 )
> 
> Tom
> 
> ______________________
> Thomas White
> Downing College
> Cambridge
> 
> 
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