--- a/src/plasma/theme.cpp~	2015-12-30 14:17:28.187000000 +0300

+++ b/src/plasma/theme.cpp	2015-12-30 14:26:23.802000000 +0300

@@ -8,6 +8,8 @@

 #include "private/svg_p.h"

 #include "private/theme_p.h"

+#include <unistd.h>

+

 #include <QFile>

 #include <QFileInfo>

 #include <QFontDatabase>

@@ -184,6 +186,10 @@ QPalette Theme::globalPalette()

 QString Theme::wallpaperPath(const QSize &size) const

 {

+    if( getuid() == 0 ) {

+	return QLatin1String("/usr/share/design/current/backgrounds/root.png");

+    }

+

     QString fullPath;

     QString image = d->defaultWallpaperTheme + QStringLiteral("/contents/images/%1x%2") + d->defaultWallpaperSuffix;

     QString defaultImage = image.arg(d->defaultWallpaperWidth).arg(d->defaultWallpaperHeight);

@@ -221,6 +227,9 @@ QString Theme::wallpaperPath(const QSize

         // the standard directories

         // qCDebug(LOG_PLASMA) << "looking for" << defaultImage;

         fullPath = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + defaultImage);

+        if (fullPath.isEmpty()) {

+	    fullPath = QLatin1String("/usr/share/design/current/backgrounds/default.png");

+        }

     }

     return fullPath;