diff --git a/gdm-2.23.92-save-root-window.patch b/gdm-2.23.92-save-root-window.patch
new file mode 100644
index 0000000..775a128
--- /dev/null
+++ b/gdm-2.23.92-save-root-window.patch
@@ -0,0 +1,117 @@
+diff -up gdm-2.23.92/daemon/gdm-simple-slave.c.save-root-window gdm-2.23.92/daemon/gdm-simple-slave.c
+--- gdm-2.23.92/daemon/gdm-simple-slave.c.save-root-window	2008-09-03 16:52:53.000000000 -0400
++++ gdm-2.23.92/daemon/gdm-simple-slave.c	2008-09-16 15:29:15.000000000 -0400
+@@ -825,6 +825,15 @@ setup_server (GdmSimpleSlave *slave)
+ {
+         /* Set the busy cursor */
+         gdm_slave_set_busy_cursor (GDM_SLAVE (slave));
++
++        /* The root window has a background that may be useful
++         * to cross fade or transition from when setting the
++         * login screen background.  We read it here, and stuff
++         * it into the standard _XSETROOT_ID root window property,
++         * so gnome-settings-daemon can get at it.
++         */
++        gdm_slave_save_root_windows (GDM_SLAVE (slave));
++
+ }
+ 
+ static void
+diff -up gdm-2.23.92/daemon/gdm-slave.c.save-root-window gdm-2.23.92/daemon/gdm-slave.c
+--- gdm-2.23.92/daemon/gdm-slave.c.save-root-window	2008-08-26 15:04:00.000000000 -0400
++++ gdm-2.23.92/daemon/gdm-slave.c	2008-09-16 15:39:18.000000000 -0400
+@@ -42,6 +42,7 @@
+ #include <dbus/dbus-glib-lowlevel.h>
+ 
+ #include <X11/Xlib.h> /* for Display */
++#include <X11/Xatom.h> /* for XA_PIXMAP */
+ #include <X11/cursorfont.h> /* for watch cursor */
+ 
+ #include "gdm-common.h"
+@@ -341,6 +342,75 @@ gdm_slave_run_script (GdmSlave   *slave,
+         return ret;
+ }
+ 
++static void
++gdm_slave_save_root_window_of_screen (GdmSlave *slave,
++                                      Atom      id_atom,
++                                      int       screen_number)
++{
++        Window root_window;
++        GC gc;
++        XGCValues values;
++        Pixmap pixmap;
++        int width, height, depth;
++
++        root_window = RootWindow (slave->priv->server_display,
++                                  screen_number);
++
++        width = DisplayWidth (slave->priv->server_display, screen_number);
++        height = DisplayHeight (slave->priv->server_display, screen_number);
++        depth = DefaultDepth (slave->priv->server_display, screen_number);
++        pixmap = XCreatePixmap (slave->priv->server_display,
++                                root_window,
++                                width, height, depth);
++
++        values.function = GXcopy;
++        values.plane_mask = AllPlanes;
++        values.fill_style = FillSolid;
++        values.subwindow_mode = IncludeInferiors;
++
++        gc = XCreateGC (slave->priv->server_display,
++                        root_window,
++                        GCFunction | GCPlaneMask | GCFillStyle | GCSubwindowMode,
++                        &values);
++
++        if (XCopyArea (slave->priv->server_display,
++                       root_window, pixmap, gc, 0, 0,
++                       width, height, 0, 0)) {
++
++                long pixmap_as_long;
++
++                pixmap_as_long = (long) pixmap;
++
++                XChangeProperty (slave->priv->server_display,
++                                 root_window, id_atom, XA_PIXMAP,
++                                 32, PropModeReplace, (guchar *) &pixmap_as_long,
++                                 1);
++
++        }
++
++        XFreeGC (slave->priv->server_display, gc);
++}
++
++void
++gdm_slave_save_root_windows (GdmSlave *slave)
++{
++        int i, number_of_screens;
++        Atom atom;
++
++        number_of_screens = ScreenCount (slave->priv->server_display);
++
++        atom = XInternAtom (slave->priv->server_display,
++                            "_XSETROOT_ID", False);
++
++        if (atom == 0) {
++                return;
++        }
++
++        for (i = 0; i < number_of_screens; i++) {
++                gdm_slave_save_root_window_of_screen (slave, atom, i);
++        }
++}
++
+ void
+ gdm_slave_set_busy_cursor (GdmSlave *slave)
+ {
+diff -up gdm-2.23.92/daemon/gdm-slave.h.save-root-window gdm-2.23.92/daemon/gdm-slave.h
+--- gdm-2.23.92/daemon/gdm-slave.h.save-root-window	2008-08-26 15:04:00.000000000 -0400
++++ gdm-2.23.92/daemon/gdm-slave.h	2008-09-16 15:29:15.000000000 -0400
+@@ -69,6 +69,7 @@ gboolean            gdm_slave_switch_to_
+ 
+ gboolean            gdm_slave_connect_to_x11_display (GdmSlave   *slave);
+ void                gdm_slave_set_busy_cursor        (GdmSlave   *slave);
++void                gdm_slave_save_root_windows      (GdmSlave   *slave);
+ gboolean            gdm_slave_run_script             (GdmSlave   *slave,
+                                                       const char *dir,
+                                                       const char *username);
diff --git a/gdm.spec b/gdm.spec
index 92891fe..4086f5f 100644
--- a/gdm.spec
+++ b/gdm.spec
@@ -16,7 +16,7 @@
 Summary: The GNOME Display Manager
 Name: gdm
 Version: 2.23.92
-Release: 4%{?dist}
+Release: 5%{?dist}
 Epoch: 1
 License: GPLv2+
 Group: User Interface/X
@@ -80,6 +80,7 @@ BuildRequires: libxklavier-devel
 Requires: audit-libs >= %{libauditver}
 Patch1: xkb-groups.patch
 Patch2: gdm-2.23.92-force-active-vt.patch
+Patch3: gdm-2.23.92-save-root-window.patch
 
 # Fedora-specific
 Patch99: gdm-2.23.1-fedora-logo.patch
@@ -103,6 +104,7 @@ multiple simulanteous logged in users.
 %setup -q
 %patch1 -p1 -b .xkb-groups
 %patch2 -p1 -b .force-active-vt
+%patch3 -p1 -b .save-root-window
 %patch99 -p1 -b .fedora-logo
 
 autoreconf
@@ -304,6 +306,9 @@ fi
 %{_datadir}/gnome-2.0/ui/GNOME_FastUserSwitchApplet.xml
 
 %changelog
+* Tue Sep 16 2008 Ray Strode <rstrode@redhat.com> - 1:2.23.92-5
+- Save root window in XSETROOTID property for transition
+
 * Fri Sep 12 2008 Ray Strode <rstrode@redhat.com> - 1:2.23.92-4
 - Fix bug in last patch