Re: API to turn off the display

From: Scott Lambert (lambert_at_lambertfam.org)
Date: 01/28/04

  • Next message: Stijn Hoop: "Re: API to turn off the display" 
    Date: Wed, 28 Jan 2004 16:40:00 -0500
To: current@freebsd.org

    On Wed, Jan 28, 2004 at 01:19:02PM -0500, John Baldwin wrote:
    > On Wednesday 28 January 2004 01:11 pm, Scott Lambert wrote:
    > > On Wed, Jan 28, 2004 at 08:32:15AM -0700, M. Warner Losh wrote:
    > > > In message: <20040128045816.Y1089@alpha.siliconlandmark.com>
    > > > : 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?
    >
    > Yes, there should be. ACPI has an entire set of methods devoted to
    > manging displays including turning the displays on and off. We just
    > don't support those yet.

    Ok. As long as there is that possibility. I'm not in a hurry. Just
    wanted to make sure I wasn't missing out on current capabilities. ACPI
    is still black magic to me. Someday I'll sit down and try to understand
    it. 

    -- 
Scott Lambert                    KC5MLE                       Unix SysAdmin
lambert@lambertfam.org      
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
  • Next message: Stijn Hoop: "Re: API to turn off the display"

    Relevant Pages