diff -Nurp acpid-2.0.10.orig/debian/powerbtn.sh acpid-2.0.10/debian/powerbtn.sh
--- acpid-2.0.10.orig/debian/powerbtn.sh	2011-11-28 11:24:32.465823027 -0600
+++ acpid-2.0.10/debian/powerbtn.sh	2011-11-28 11:20:41.645814830 -0600
@@ -35,10 +35,18 @@ test -f /var/lock/acpisleep && exit 0
 PMS="gnome-settings-daemon kpowersave xfce4-power-manager"
 PMS="$PMS guidance-power-manager.py dalston-power-applet"
 
-if pidof x $PMS > /dev/null ||
-	( test "$XUSER" != "" && pidof dcopserver > /dev/null && test -x /usr/bin/dcop && /usr/bin/dcop --user $XUSER kded kded loadedModules | grep -q klaptopdaemon) ||
-	( test "$XUSER" != "" && test -x /usr/bin/qdbus && test -r /proc/$(pidof kded4)/environ && su - $XUSER -c "eval $(echo -n 'export '; cat /proc/$(pidof kded4)/environ |tr '\0' '\n'|grep DBUS_SESSION_BUS_ADDRESS); qdbus org.kde.kded" | grep -q powerdevil) ; then
-    exit
+if pidof x $PMS > /dev/null; then
+        exit
+elif test "$XUSER" != "" && pidof dcopserver > /dev/null && test -x /usr/bin/dcop && /usr/bin/dcop --user $XUSER kded kded loadedModules | grep -q klaptopdaemon; then
+        exit
+elif test "$XUSER" != "" && test -x /usr/bin/qdbus; then
+        kded4pid=$(pgrep -n -u $XUSER kded4)
+        if test "$kded4pid" != ""; then
+                dbusaddr=$(su - $XUSER -c "grep -z DBUS_SESSION_BUS_ADDRESS /proc/$kded4pid/environ")
+                if test "$dbusaddr" != "" && su - $XUSER -c "export $dbusaddr; qdbus org.kde.kded" | grep -q powerdevil; then
+                        exit
+                fi
+        fi
 fi
 
 # If all else failed, just initiate a plain shutdown.