diff -u kdebase-workspace-4.0.2/debian/patches/series kdebase-workspace-4.0.2/debian/patches/series
--- kdebase-workspace-4.0.2/debian/patches/series
+++ kdebase-workspace-4.0.2/debian/patches/series
@@ -20,0 +21 @@
+kubuntu_501_fix_wallpaper_r783864.diff
diff -u kdebase-workspace-4.0.2/debian/changelog kdebase-workspace-4.0.2/debian/changelog
--- kdebase-workspace-4.0.2/debian/changelog
+++ kdebase-workspace-4.0.2/debian/changelog
@@ -1,3 +1,10 @@
+kdebase-workspace (4:4.0.2-0ubuntu3) hardy; urgency=low
+
+  * Added debian/patches/kubuntu_501_fix_wallpaper_r783864.diff from svn
+    to fix wallpaper blanking issues: (LP: #198470)
+
+ -- Terence Simpson <tsimpson@ubuntu.com>  Wed, 12 Mar 2008 15:10:49 +0000
+
 kdebase-workspace (4:4.0.2-0ubuntu2) hardy; urgency=low
 
   * debian/kdm-kde4.config: merged from kdm package, fixes reconfiguration for
only in patch2:
unchanged:
--- kdebase-workspace-4.0.2.orig/debian/patches/kubuntu_501_fix_wallpaper_r783864.diff
+++ kdebase-workspace-4.0.2/debian/patches/kubuntu_501_fix_wallpaper_r783864.diff
@@ -0,0 +1,65 @@
+Index: kdebase-workspace-4.0.2/plasma/containments/desktop/desktop.cpp
+===================================================================
+--- kdebase-workspace-4.0.2/plasma/containments/desktop/desktop.cpp	2008/03/09 20:12:38	783863
++++ kdebase-workspace-4.0.2/plasma/containments/desktop/desktop.cpp	2008/03/09 20:15:09	783864
+@@ -64,9 +64,7 @@
+       m_logoutAction(0),
+       m_configDialog(0),
+       m_wallpaperPath(0),
+-      m_renderer(resolution(), 1.0),
+-      m_fadeOutAnimId(0),
+-      m_fadeInAnimId(0)
++      m_renderer(resolution(), 1.0)
+ {
+     qRegisterMetaType<QImage>("QImage");
+     qRegisterMetaType<QPersistentModelIndex>("QPersistentModelIndex");
+@@ -276,19 +274,7 @@
+ void DefaultDesktop::updateBackground(int token, const QImage &img)
+ {
+     if (m_current_renderer_token == token) {
+-        QPixmap oldBitmapBackground;
+-        if (!m_bitmapBackground.isNull()) {
+-            oldBitmapBackground = m_bitmapBackground;
+-        }
+         m_bitmapBackground = QPixmap::fromImage(img);
+-
+-        if (!oldBitmapBackground.isNull()) {
+-            m_fadeOutAnimId = Plasma::Phase::self()->animateElement(this, Plasma::Phase::ElementDisappear);
+-            Plasma::Phase::self()->setAnimationPixmap(m_fadeOutAnimId, oldBitmapBackground);
+-            m_fadeInAnimId = Plasma::Phase::self()->animateElement(this, Plasma::Phase::ElementAppear);
+-            Plasma::Phase::self()->setAnimationPixmap(m_fadeInAnimId, m_bitmapBackground);
+-        }
+-
+         update();
+     }
+ }
+@@ -431,22 +417,13 @@
+         painter->resetTransform();
+     }
+ 
+-    if (m_fadeOutAnimId || m_fadeInAnimId) {
+-        if (m_fadeOutAnimId) {
+-            painter->drawPixmap(option->exposedRect, Plasma::Phase::self()->animationResult(m_fadeOutAnimId), option->exposedRect);
+-        }
+-        if (m_fadeInAnimId) {
+-            painter->drawPixmap(option->exposedRect, Plasma::Phase::self()->animationResult(m_fadeInAnimId), option->exposedRect);
+-        }
+-    } else if (!m_bitmapBackground.isNull()) {
+-        // blit the background (saves all the per-pixel-products that blending does)
+-        painter->setCompositionMode(QPainter::CompositionMode_Source);
+-
+-        // for pixmaps we draw only the exposed part (untransformed since the
+-        // bitmapBackground already has the size of the viewport)
+-        painter->drawPixmap(option->exposedRect, m_bitmapBackground, option->exposedRect);
+-        //kDebug() << "draw pixmap of background to" << option->exposedRect;
+-    }
++    // blit the background (saves all the per-pixel-products that blending does)
++    painter->setCompositionMode(QPainter::CompositionMode_Source);
++
++    // for pixmaps we draw only the exposed part (untransformed since the
++    // bitmapBackground already has the size of the viewport)
++    painter->drawPixmap(option->exposedRect, m_bitmapBackground, option->exposedRect);
++    //kDebug() << "draw pixmap of background to" << option->exposedRect;
+ 
+     // restore transformation and composition mode
+     painter->restore();