LinuxQuestions.org - ACPI LCD permanently turns off when lid is shut Inspiron B120

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ACPI LCD permanently turns off when lid is shut Inspiron B120

I installed the 2.6 kernel on my Dell Inspiron B120 running Slackware 10.2 to get acpi and suspend to hard drive working. Everything is installed fine. The problem I am having now is whenever I close my lid the lcd screen turns off and won't come back on. I know the system is still working because I can toggle capslock, and when I press the power button the lcd turns back on before the computer shutsdown. What's the problem here?

Ok so I've been trying to figure out what's going on. I don't think the computer is going into suspend mode, because I can ctrl+alt+dlt when the screen goes blank.

The strange thing is I don't see anything in acpi telling my screen to turn off.

The only two files in /etc/acpi are

/etc/acpi/events/default

Quote:

# This is the ACPID default configuration, it takes all
# events and passes them to /etc/acpi/default.sh for further
# processing.

# event keeps a regular expression matching the event. To get
# power events only, just use something like "event=button power.*"
# to catch it.
# action keeps the command to be executed after an event occurs
# In case of the power event above, your entry may look this way:
#event=button power.*
#action=/sbin/init 0

# Optionally you can specify the placeholder %e. It will pass
# through the whole kernel event message to the program you've
# specified.

event=.*
action=/etc/acpi/acpi_handler.sh %e

and /etc/acpi/acpi_handler.sh

Quote:

#!/bin/sh
# Default acpi script that takes an entry for all actions

IFS=${IFS}/
set $@

case "$1" in
button)
case "$2" in
power) /sbin/init 0
;;
*) logger "ACPI action $2 is not defined"
;;
esac
;;
*)
logger "ACPI group $1 / action $2 is not defined"
;;
esac

Am I missing something here?

It would help if you tell us which Linux distribution you are
using. I use Suse 10 and while I can get it to suspend to disk
I can't get it to turn on the LCD backlight when it comes out
of suspend. However I also have a similar problem with windows
XP which came pre-installed on this notebook.

Sorry, I'm running Slackware 10.2 on the 2.6.15.5 kernel.

Hi,
so what did you have to do to get acpi working on an Inspiron B120 running
SUSE 10.0? When I try to boot up with it enabled, it hangs when looking for
the floppy drive.

One more thing I found

If I'm running a window manager and close the lid, it doesn't come back on. But if I ctrl+alt+backspace to exit out of X the screen comes back on. This doesn't really work for when I close the screen while I'm just a command prompt though. Could this be pointing at some specific problem?

You may need to "xset dpms force on" "vbetool dpms on" or if you have ATI gfx "radeontool light on". Put it in a acpi script

Thanks. xset dpms force on didn't work when I tried to run from the command line. I don't have vbetool

Check that you have

Code:

Option "dpms" "true"

under Section "Monitor" in your xorg.conf
Check which script is run when lid is closed in /var/log/acpid