--- ati-powermode.sh	2006-07-15 13:24:53.000000000 -0700
+++ /etc/acpi/ati-powermode.sh	2006-07-15 13:21:32.000000000 -0700
@@ -1,68 +1,103 @@
-#!/bin/bash 
-
-#
-# Control script for ACPI lid state and AC adapter state
+#!/bin/bash
+# Released under the GPLv2 or greater.
+# 
+# Script to adjust power mode of ati graphic chips
 #
+# This was originally taken from the suse package of ATI's binary package 
+# and modified by Ryan Neufeld June 2006.
+# Changlog:
+# June 7 2006
+# -------------------------------------
+# - update to use 'who' rather than 'finger' as it requires some users to install an extra package.
+# - remove un-needed function references.
+# - fixed location of aticonfig script.
+# - added variables for LOWPOWER and HIGHPOWER
+# - fixed formatting, changed all spaces to tabs
+# - add support for radeontool
+# - add support for XGL
+# - piped aticonfig stderr to /dev/null
+#------ Script start ------
+
+ATICONFIG="/opt/ati/bin/aticonfig"
+
+# Valid settings are, from lowest to highest speeds, 1, 2, 3. 
+# This is dependent on your video card, use "aticonfig --lsp" to find out which settings your card supports
+LOWPOWER=2
+HIGHPOWER=3
+
+# If USE_RADEONTOOL is set to 1 then "radeontool light off" will be executed 
+# which should on mobility chipsets turn off the backlight
+USE_RADEONTOOL=1
+RADEONTOOL="/usr/sbin/radeontool"
+
+
+echo "Executing ati-powermode.sh"
 
 getXuser() {
-        user=`who| grep -m1 ":$displaynum " | awk '{print $1}'`
-        if [ x"$user" = x"" ]; then
-                user=`who| grep -m1 ":$displaynum" | awk '{print $1}'`
-        fi
-        if [ x"$user" != x"" ]; then
-                userhome=`getent passwd $user | cut -d: -f6`
-                export XAUTHORITY=$userhome/.Xauthority
-        else
-                export XAUTHORITY=""
-        fi
+	user=`who | grep -m1 ":$displaynum " | awk '{print $1}'`
+	if [ x"$user" = x"" ]; then
+		user=`who | grep -m1 ":$displaynum" | awk '{print $1}'`
+	fi
+	if [ x"$user" != x"" ]; then
+		userhome=`getent passwd $user | cut -d: -f6`
+		export XAUTHORITY=$userhome/.Xauthority
+	else
+		export XAUTHORITY=""
+	fi
 }
 
 
 grep -q closed /proc/acpi/button/lid/*/state
 if [ $? = 0 ]; then
- lid_closed=1
- echo "Lid Closed"
+	lid_closed=1
+	echo "Lid Closed"
+	if [ $USE_RADEONTOOL -eq 1 ]; then
+		$RADEONTOOL light off
+	fi
 else
- lid_closed=0
- echo "Lid Open"
+	lid_closed=0
+	echo "Lid Open"
+	if [ $USE_RADEONTOOL -eq 1 ]; then
+		$RADEONTOOL light on
+	fi
 fi
 
 grep -q off-line /proc/acpi/ac_adapter/*/state 
-
 if [ $? = 0 ]; then
-   echo "On DC"
-   on_dc=1
+	echo "On DC"
+	on_dc=1
 else
-   echo "On AC"
-   on_dc=0
+	echo "On AC"
+	on_dc=0
 fi
 
 
 
 if [ ${lid_closed} -eq 1 -o ${on_dc} -eq 1 ]; then
-    echo "Low power"
-    for x in /tmp/.X11-unix/*; do
-	displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
-	getXuser;
-	if [ x"$XAUTHORITY" != x"" ]; then
-		if [ $(pgrep -x Xgl) != "" ]; then
-                        displaynum=$(( $displaynum + 93 ));
-                fi
-	    export DISPLAY=":$displaynum"	    
-	    su $user -c "/opt/ati/bin/aticonfig --set-powerstate=1 --effective=now"
-	fi
-    done
+	echo "Low power"
+	for x in /tmp/.X11-unix/*; do
+		displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
+		getXuser;
+		if [ x"$XAUTHORITY" != x"" ]; then
+			if [ $(pgrep -x Xgl ) != "" ]; then
+				displaynum=$(( $displaynum + 93 ));
+			fi
+			export DISPLAY=":$displaynum"
+			su $user -c "$ATICONFIG --set-powerstate=$LOWPOWER --effective=now 2> /dev/null"
+		fi
+	done
 else
-    echo "high power"
+    echo "High power"
     for x in /tmp/.X11-unix/*; do
 	displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
 	getXuser;
 	if [ x"$XAUTHORITY" != x"" ]; then
 		if [ $(pgrep -x Xgl) != "" ]; then
-                        displaynum=$(( $displaynum + 93 ));
-                fi
+			displaynum=$(( $displaynum + 93 ));
+		fi
 	    export DISPLAY=":$displaynum"
-	    su $user -c "/opt/ati/bin/aticonfig --set-powerstate=3 --effective=now"
+	    su $user -c "$ATICONFIG --set-powerstate=$HIGHPOWER --effective=now 2> /dev/null"
 	fi
     done
 fi
+