Arch Linux

Keveam

Member

From: St. Louis, MO

Registered: 2009-04-03

Posts: 30

Power management in a window manager.

Hey everyone. So, I love Arch, but I'm having some trouble. I want to use a window manager full time. I have everything setup just right, except for one thing: screen brightness. I want to be able to have my display dim itself whenever the AC adaptor is unplugged. I've looked at the acpid man page & arch wiki, and the solution isn't clear.

lagagnon

Member

From: an Island in the Pacific...

Registered: 2009-12-10

Posts: 1,087

Website

Re: Power management in a window manager.

There are parts of this link I found that might help you: http://www.thinkwiki.org/wiki/Automatic … brightness

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Philosophy is looking for a black cat in a dark room. Metaphysics is looking for a black cat in a dark room that isn't there. Religion is looking for a black cat in a dark room that isn't there and shouting "I found it!". Science is looking for a black cat in a dark room with a flashlight.

zowki

Member

From: Trapped in The Matrix

Registered: 2008-11-27

Posts: 582

Website

Re: Power management in a window manager.

On my laptop there is a bios setting for this to allow automatic brightness reduction for all OSes. Check your own bios for this setting.

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How's my programming? Call 1-800-DEV-NULL

moljac024

Member

From: Serbia

Registered: 2008-01-29

Posts: 2,676

Re: Power management in a window manager.

I just use gnome-power-manager...

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The day Microsoft makes a product that doesn't suck, is the day they make a vacuum cleaner.
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But if they tell you that I've lost my mind, maybe it's not gone just a little hard to find...

sHyLoCk

Member

From: /dev/null

Registered: 2009-06-19

Posts: 1,197

Re: Power management in a window manager.

http://bbs.archlinux.org/viewtopic.php?id=88011

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~ Regards,
sHy
ArchBang: Yet another Distro for Allan to break.
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owain

Member

Registered: 2009-08-24

Posts: 251

Re: Power management in a window manager.

laptop-mode-tools has the option to control screen brightness, with the file /etc/laptop-mode/conf.d/lcd-brightness.conf

Edit: alternatively, add something like these xbacklight lines to /etc/acpi/handler.sh:

    ac_adapter)
        case "$2" in
            ACAD)
                case "$4" in
                    00000000)
                        #echo -n $minspeed >$setspeed
                        xbacklight -set 80
                    ;;
                    00000001)
                        #echo -n $maxspeed >$setspeed
            xbacklight -set 100
                    ;;
                esac
                ;;
            *)  logger "ACPI action undefined: $2" ;;
        esac
        ;;

Last edited by owain (2010-01-07 11:18:12)