Dell M4400 && power-off the display on Lid close (8-CURRENT / Xorg)

[Lars Engels]

On Thu, Aug 20, 2009 at 10:10:55AM +0200, Matthias Apitz wrote:
> 
> Hello,
> 
> I'm running 8-CURRENT and Xorg on the above mentioned laptop.
> 
> I'd like to have powered off the display on Lid close, and powered on
> again on open; I watched the devd(8) events in both cases:
> 
> close:
> setting system=ACPI
> setting subsystem=Lid
> setting type=\_SB_.LID_
> setting notify=0x00
> Processing notify event
> ...
> 
> open:
> setting system=ACPI
> setting subsystem=Lid
> setting type=\_SB_.LID_
> setting notify=0x01
> Processing notify event
> ...
> 
> but they are not estimated in /etc/devd.conf. Any hint for a good
> devd.conf entry to make that working? Thx in advance
> 
> Btw: I don't want suspend/resume.

Try this:

notify 10 {
	match "system"		"ACPI";
	match "subsystem"	"Lid";
	action"$PATH_TO_YOUR_SCRIPT $notify";
};

And in your script you turn off the backlight with
xbacklight -set 0
when notify is 0x00 and
xbacklight -set 100
for 0x01.

HTH

Lars

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