[solved] [pm-utils] Control screen brightness depending on AC state

orschiro · 2012-11-22 23:24:19

Hello,

Is somebody using pm-utils together with a script in /etc/pm/power.d to control screen brightness of his laptop depending on the AC state and could provide me with a working example?

There is the following one from askubuntu which raises the error Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SettingsDaemon was not provided by any .service files:

export DISPLAY=:0
user=chris
bat_bright=50
ac_bright=90

. /home/$user/.dbus/session-bus/*

case $1 in
    true)
    echo "Enable screen power saving"
sudo -u $user -g $user dbus-send --session --print-reply  --dest="org.gnome.SettingsDaemon" \
    /org/gnome/SettingsDaemon/Power org.gnome.SettingsDaemon.Power.Screen.SetPercentage uint32:$bat_bright
    ;;
    false)
    echo "Disable screen power saving"
sudo -u $user -g $user dbus-send --session --print-reply  --dest="org.gnome.SettingsDaemon" \
    /org/gnome/SettingsDaemon/Power org.gnome.SettingsDaemon.Power.Screen.SetPercentage uint32:$ac_bright
    ;;
esac

Source: http://askubuntu.com/questions/93601/ch … connection

Thank you

Robert

Last edited by orschiro (2012-11-23 05:42:40)

cfr · 2012-11-23 00:44:31

Have you considered laptop mode tools?

Or reading the wiki?

orschiro · 2012-11-23 05:44:45

Hi cfr,

It was a long time ago that I used pm-powersaving and since using Gnome I thought the new way of dealing this is through Gnome settings daemon. Anyway, I ended up the conventional way straight writing the value into /sys.

I added a working script to the wiki page

Regards

Arch Linux

#1 2012-11-22 23:24:19

[solved] [pm-utils] Control screen brightness depending on AC state

#2 2012-11-23 00:44:31

Re: [solved] [pm-utils] Control screen brightness depending on AC state

#3 2012-11-23 05:44:45

Re: [solved] [pm-utils] Control screen brightness depending on AC state

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