diff -Nru unity-greeter-0.2.8/debian/changelog unity-greeter-0.2.8/debian/changelog
--- unity-greeter-0.2.8/debian/changelog	2012-10-01 18:34:33.000000000 +0000
+++ unity-greeter-0.2.8/debian/changelog	2012-10-22 16:36:46.000000000 +0000
@@ -1,3 +1,11 @@
+unity-greeter (0.2.8-0ubuntu1.4) precise-proposed; urgency=low
+
+  * debian/maintscript, debian/control:
+    - Delete obsolete conffile /etc/lightdm/unity-greeter.conf on upgrade
+      (LP: #1050769)
+
+ -- Michael Terry <mterry@ubuntu.com>  Mon, 22 Oct 2012 11:47:56 -0400
+
 unity-greeter (0.2.8-0ubuntu1.3) precise-proposed; urgency=low
 
   * debian/patches/fix-focus.patch:
diff -Nru unity-greeter-0.2.8/debian/control unity-greeter-0.2.8/debian/control
--- unity-greeter-0.2.8/debian/control	2012-07-26 13:57:31.000000000 +0000
+++ unity-greeter-0.2.8/debian/control	2012-10-22 16:36:28.000000000 +0000
@@ -4,7 +4,7 @@
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
 XSBC-Original-Maintainer: Robert Ancell <robert.ancell@canonical.com>
 Standards-Version: 3.9.2
-Build-Depends: debhelper (>= 7.0.50~),
+Build-Depends: debhelper (>= 8.1.0~),
                dh-autoreconf,
                gnome-common,
                libcanberra-dev,
@@ -17,6 +17,7 @@
 
 Package: unity-greeter
 Architecture: any
+Pre-Depends: ${misc:Pre-Depends}
 Depends: ${misc:Depends},
          ${shlibs:Depends},
          gnome-settings-daemon
diff -Nru unity-greeter-0.2.8/debian/maintscript unity-greeter-0.2.8/debian/maintscript
--- unity-greeter-0.2.8/debian/maintscript	1970-01-01 00:00:00.000000000 +0000
+++ unity-greeter-0.2.8/debian/maintscript	2012-10-22 16:36:28.000000000 +0000
@@ -0,0 +1 @@
+rm_conffile /etc/lightdm/unity-greeter.conf 0.2.8-0ubuntu1.3