diff --git a/effects/screenshot/screenshot.cpp b/effects/screenshot/screenshot.cpp
--- a/effects/screenshot/screenshot.cpp
+++ b/effects/screenshot/screenshot.cpp
@@ -607,35 +607,50 @@
 QImage ScreenShotEffect::blitScreenshot(const QRect &geometry)
 {
     QImage img;
+    qreal scale = 1;
+    auto scaledGeometry = geometry;
+
     if (effects->isOpenGLCompositing())
     {
-        img = QImage(geometry.size(), QImage::Format_ARGB32);
+        int width = geometry.width();
+        int height = geometry.height();
         if (GLRenderTarget::blitSupported() && !GLPlatform::instance()->isGLES()) {
-            GLTexture tex(GL_RGBA8, geometry.width(), geometry.height());
+            // HARDCODED, need to get this properly
+            // tried QGuiApplication::primaryScreen()
+            // and GLRenderTarget::virtualScreenScale()
+            scale = 2;
+            width = static_cast<int>(width * scale);
+            height = static_cast<int>(height * scale);
+            img = QImage(width, height, QImage::Format_ARGB32);
+            GLTexture tex(GL_RGBA8, width, height);
             GLRenderTarget target(tex);
-            target.blitFromFramebuffer(geometry);
+            const auto deviceGeometry = QRect(static_cast<int>(geometry.x() * scale),
+                                             static_cast<int>(geometry.y() * scale),
+                                             width, height);
+            target.blitFromFramebuffer(geometry, deviceGeometry);
             // copy content from framebuffer into image
             tex.bind();
-            glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*)img.bits());
+            glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, static_cast<GLvoid*>(img.bits()));
             tex.unbind();
         } else {
-            glReadPixels(0, 0, img.width(), img.height(), GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*)img.bits());
+            img = QImage(width, height, QImage::Format_ARGB32);
+            glReadPixels(0, 0, img.width(), img.height(), GL_RGBA, GL_UNSIGNED_BYTE, static_cast<GLvoid*>(img.bits()));
         }
-        ScreenShotEffect::convertFromGLImage(img, geometry.width(), geometry.height());
+        ScreenShotEffect::convertFromGLImage(img, width, height);
     }
 
 #ifdef KWIN_HAVE_XRENDER_COMPOSITING
     if (effects->compositingType() == XRenderCompositing) {
     xcb_image_t *xImage = nullptr;
-        img = xPictureToImage(effects->xrenderBufferPicture(), geometry, &xImage);
+        img = xPictureToImage(effects->xrenderBufferPicture(), scaledGeometry, &xImage);
         if (xImage) {
             xcb_image_destroy(xImage);
         }
     }
 #endif
 
     if (m_captureCursor) {
-        grabPointerImage(img, geometry.x(), geometry.y());
+        grabPointerImage(img, static_cast<int>(geometry.x() * scale), static_cast<int>(geometry.y() * scale));
     }
 
     return img;