diff --git a/libkwineffects/kwineffectquickview.h b/libkwineffects/kwineffectquickview.h
--- a/libkwineffects/kwineffectquickview.h
+++ b/libkwineffects/kwineffectquickview.h
@@ -60,7 +60,7 @@
     Q_OBJECT
 
 public:
-    static void setShareContext(std::unique_ptr<QOpenGLContext> context);
+    static void setUsingShareContexts(bool);
 
     enum class ExportMode {
         /** The contents will be available as a texture in the shared contexts. Image will be blank*/
diff --git a/libkwineffects/kwineffectquickview.cpp b/libkwineffects/kwineffectquickview.cpp
--- a/libkwineffects/kwineffectquickview.cpp
+++ b/libkwineffects/kwineffectquickview.cpp
@@ -41,7 +41,7 @@
 
 using namespace KWin;
 
-static std::unique_ptr<QOpenGLContext> s_shareContext;
+static bool s_usingShareContexts = false;
 
 class Q_DECL_HIDDEN EffectQuickView::Private
 {
@@ -100,7 +100,7 @@
         format.setStencilBufferSize(8);
 
         d->m_glcontext.reset(new QOpenGLContext);
-        d->m_glcontext->setShareContext(s_shareContext.get());
+        d->m_glcontext->setShareContext(QOpenGLContext::globalShareContext());
         d->m_glcontext->setFormat(format);
         d->m_glcontext->create();
 
@@ -113,14 +113,8 @@
         d->m_renderControl->initialize(d->m_glcontext.data());
         d->m_glcontext->doneCurrent();
 
-        if (!d->m_glcontext->shareContext()) {
-            qCDebug(LIBKWINEFFECTS) << "Failed to create a shared context, falling back to raster rendering";
 
-            qCDebug(LIBKWINEFFECTS) << "Extra debug:";
-            qCDebug(LIBKWINEFFECTS) << "our context:" << d->m_glcontext.data();
-            qCDebug(LIBKWINEFFECTS) << "share context:" << s_shareContext.get();
-
-            // still render via GL, but blit for presentation
+        if (!s_usingShareContexts) {
             d->m_useBlit = true;
         }
     }
@@ -249,9 +243,9 @@
     QCoreApplication::sendEvent(d->m_view, keyEvent);
 }
 
-void EffectQuickView::setShareContext(std::unique_ptr<QOpenGLContext> context)
+void EffectQuickView::setUsingShareContexts(bool usingShare)
 {
-    s_shareContext = std::move(context);
+    s_usingShareContexts = usingShare;
 }
 
 QRect EffectQuickView::geometry() const
diff --git a/main_x11.cpp b/main_x11.cpp
--- a/main_x11.cpp
+++ b/main_x11.cpp
@@ -421,6 +421,7 @@
     qunsetenv("QT_DEVICE_PIXEL_RATIO");
     qunsetenv("QT_SCALE_FACTOR");
     QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
 
     KWin::ApplicationX11 a(argc, argv);
     a.setupTranslator();
diff --git a/plugins/platforms/x11/standalone/glxbackend.cpp b/plugins/platforms/x11/standalone/glxbackend.cpp
--- a/plugins/platforms/x11/standalone/glxbackend.cpp
+++ b/plugins/platforms/x11/standalone/glxbackend.cpp
@@ -130,7 +130,7 @@
     // do cleanup after initBuffer()
     cleanupGL();
     doneCurrent();
-    EffectQuickView::setShareContext(nullptr);
+    EffectQuickView::setUsingShareContexts(false);
 
     if (ctx)
         glXDestroyContext(display(), ctx);
@@ -260,6 +260,7 @@
 bool GlxBackend::initRenderingContext()
 {
     const bool direct = true;
+    bool usingSharedContext = false;
 
     // Use glXCreateContextAttribsARB() when it's available
     if (hasExtension(QByteArrayLiteral("GLX_ARB_create_context"))) {
@@ -302,9 +303,16 @@
         }
         for (auto it = candidates.begin(); it != candidates.end(); it++) {
             const auto attribs = it->build();
-            ctx = glXCreateContextAttribsARB(display(), fbconfig, nullptr, true, attribs.data());
+
+            auto share = QOpenGLContext::globalShareContext();
+            GLXContext shareHandle = nullptr;
+            if (QOpenGLContext::globalShareContext()) {
+                shareHandle = QOpenGLContext::globalShareContext()->nativeHandle().value<QGLXNativeContext>().context();
+            }
+            ctx = glXCreateContextAttribsARB(display(), fbconfig, shareHandle, true, attribs.data());
             if (ctx) {
                 qCDebug(KWIN_X11STANDALONE) << "Created GLX context with attributes:" << &(*it);
+                usingSharedContext = shareHandle != nullptr;
                 break;
             }
         }
@@ -325,11 +333,7 @@
         return false;
     }
 
-    auto qtContext = new QOpenGLContext;
-    QGLXNativeContext native(ctx, display());
-    qtContext->setNativeHandle(QVariant::fromValue(native));
-    qtContext->create();
-    EffectQuickView::setShareContext(std::unique_ptr<QOpenGLContext>(qtContext));
+    EffectQuickView::setUsingShareContexts(usingSharedContext);
 
     return true;
 }