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Re: backlight stays off



David Berg wrote:

> I have a Linux Certified laptop (LC2210D) and finally decided I'd
> rather have both my systems on debian sarge instead of a sarge and an
> ubuntu.  So I'm working through getting all the hardware that was
> working fine under ubuntu setup under debian.
> 
> My current problem is the backlight.  Running `xset dpms force off`
> works just fine and the system wakes up with no problem.  The problem
> is with a lid event the backlight goes off (though the screen doesn't
> blank) and I haven't been able to get it to come back on with out
> rebooting.  This happens whether the acpi script is empty or contains
> the `xset dpms force off` command.

What version of acpi-support do you have?  With a recent upgrade to 0.57
(and still w/ 0.58) lid events stopped turning mine on, too.  I had to add
a "vbetool post" command to lid.sh.  Be warned, vbetool _can_ be hazardous
to your system, but it works for me:

derek@othello:/etc/acpi$ diff -u lid.sh myLid.sh
--- lid.sh      2006-02-16 11:28:25.000000000 -0400
+++ myLid.sh    2006-02-17 16:00:12.000000000 -0400
@@ -20,6 +18,7 @@
        fi
     done
 else
+ vbetool post
     for x in /tmp/.X11-unix/*; do
        displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
        getXuser;

-- 
derek



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