--- a/src/options.h

+++ b/src/options.h

@@ -741,7 +741,7 @@ public:

         return true;

     }

     static CompositingType defaultCompositingMode() {

-        return OpenGLCompositing;

+        return QPainterCompositing;

     }

     static bool defaultUseCompositing() {

         return true;

--- a/src/options.cpp

+++ b/src/options.cpp

@@ -821,7 +821,7 @@ bool Options::loadCompositingConfig (boo

     bool useCompositing = false;

     CompositingType compositingMode = NoCompositing;

-    QString compositingBackend = config.readEntry("Backend", "OpenGL");

+    QString compositingBackend = config.readEntry("Backend", "QPainter");

     if (compositingBackend == "QPainter")

         compositingMode = QPainterCompositing;

     else

--- a/src/kwin.kcfg

+++ b/src/kwin.kcfg

@@ -227,7 +227,7 @@

             <default>6144</default>

         </entry>

         <entry name="Backend" type="String">

-            <default>OpenGL</default>

+            <default>QPainter</default>

         </entry>

         <entry name="Enabled" type="Bool">

             <default>true</default>

--- a/src/plugins/platforms/x11/standalone/x11_platform.cpp

+++ b/src/plugins/platforms/x11/standalone/x11_platform.cpp

@@ -153,7 +153,7 @@ QString X11StandalonePlatform::compositi

     // first off, check whether we figured that we'll crash on detection because of a buggy driver

     KConfigGroup gl_workaround_group(kwinApp()->config(), "Compositing");

     const QString unsafeKey(QLatin1String("OpenGLIsUnsafe") + (kwinApp()->isX11MultiHead() ? QString::number(kwinApp()->x11ScreenNumber()) : QString()));

-    if (gl_workaround_group.readEntry("Backend", "OpenGL") == QLatin1String("OpenGL") &&

+    if (gl_workaround_group.readEntry("Backend", "QPainter") == QLatin1String("OpenGL") &&

         gl_workaround_group.readEntry(unsafeKey, false))

         return i18n("<b>OpenGL compositing (the default) has crashed KWin in the past.</b><br>"

                     "This was most likely due to a driver bug."

@@ -181,7 +181,7 @@ bool X11StandalonePlatform::compositingP

     // first off, check whether we figured that we'll crash on detection because of a buggy driver

     KConfigGroup gl_workaround_group(kwinApp()->config(), "Compositing");

     const QString unsafeKey(QLatin1String("OpenGLIsUnsafe") + (kwinApp()->isX11MultiHead() ? QString::number(kwinApp()->x11ScreenNumber()) : QString()));

-    if (gl_workaround_group.readEntry("Backend", "OpenGL") == QLatin1String("OpenGL") &&

+    if (gl_workaround_group.readEntry("Backend", "QPainter") == QLatin1String("OpenGL") &&

         gl_workaround_group.readEntry(unsafeKey, false))

         return false;

--- a/src/kcmkwin/kwincompositing/kwincompositing_setting.kcfg

+++ b/src/kcmkwin/kwincompositing/kwincompositing_setting.kcfg

@@ -49,7 +49,7 @@

        </entry>

        <entry name="Backend" type="Enum">

-           <default>OpenGL</default>

+           <default>QPainter</default>

            <choices>

                <choice name="OpenGL" />

            </choices>