[root@hermes acpi]# cat acpi-handler-vaio.diff 
--- handler.sh.old	2008-04-04 05:01:51.000000000 +0200
+++ handler.sh	2008-04-04 04:59:05.000000000 +0200
@@ -7,6 +7,7 @@
 minspeed=`cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq`
 maxspeed=`cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq`
 setspeed="/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed"
+presbright=`cat /sys/class/backlight/sony/brightness`
 
 set $*
 
@@ -18,29 +19,34 @@
 			*)    logger "ACPI action undefined: $2" ;;
 		esac
 		;;
+		
 	button/sleep)
 		case "$2" in
 			SLPB) echo -n mem >/sys/power/state ;;
 			*)    logger "ACPI action undefined: $2" ;;
 		esac
 		;;
+		
 	ac_adapter)
 		case "$2" in
-			AC)
+			ACAD)
 				case "$4" in
 					00000000)
 						echo -n $minspeed >$setspeed
 						#/etc/laptop-mode/laptop-mode start
+						echo 2 > /sys/class/backlight/sony/brightness
 					;;
 					00000001)
 						echo -n $maxspeed >$setspeed
 						#/etc/laptop-mode/laptop-mode stop
+						echo 6 > /sys/class/backlight/sony/brightness
 					;;
 				esac
 				;;
 			*) logger "ACPI action undefined: $2" ;;
 		esac
 		;;
+		
 	battery)
 		case "$2" in
 			BAT0)
@@ -60,6 +66,29 @@
 	button/lid)
 		#echo "LID switched!">/dev/tty5
 		;;
+		
+	sony/hotkey)
+		case "$2" in
+			SPIC)
+				case "$4" in
+					0000000c)
+						[ -e /var/run/daemons/bluetooth ] && /etc/rc.d/bluetooth stop || /etc/rc.d/bluetooth start
+					;;
+					00000010)
+						echo $(( ${presbright}-1 )) > /sys/class/backlight/sony/brightness
+					;;
+					00000011)
+						echo $(( ${presbright}+1 )) > /sys/class/backlight/sony/brightness
+					;;
+					00000017)
+						/usr/sbin/pm-suspend
+					;;
+				esac
+				;;
+			*) logger "ACPI action undefined: $2" ;;
+		esac
+		;;
+		
 	*)
 		logger "ACPI group/action undefined: $1 / $2"
 		;;