API to turn off the display

Mark Sergeant msergeant at snsonline.net
Wed Jan 28 16:33:44 PST 2004


On Thu, 2004-01-29 at 10:29, Daniel O'Connor wrote:
> On Thursday 29 January 2004 04:41, Scott Lambert wrote:
> > On Wed, Jan 28, 2004 at 08:32:15AM -0700, M. Warner Losh wrote:
> > > In message: <20040128045816.Y1089 at alpha.siliconlandmark.com>
> > >
> > >             Andre Guibert de Bruet <andy at siliconlandmark.com> writes:
> > > : Through functionality provided by the BIOS. A 30-second
> > > : search through the source would have shown the answer in
> > > : /usr/src/sys/i386/bios/apm.c:334 with apm_display().
> > >
> > > My experience is that turning the display off via apm doesn't work on
> > > many laptops :-(.
> >
> > Is there anything that does; other than closing the lid?
> 
> I find DPMS works for me..
> 
> xset dpms force off
> 
> My Monitor section in the X config has..
>   Option      "DPMS"
> 
> My video chipset is an ATI Rage 128 Mobility in a Dell Inspiron 8000.

I use the above, one minor thing though, the backlight on the laptop
stays on (NEC Versa S900 with ATI radeon 9000 mobility) yet under
windows the backlight turns off, still haven't got it  worked out :/


-- 
Mark Sergeant <msergeant at snsonline.net>
SNSOnline Technical Services
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