diff --git a/decorations/decorationrenderer.cpp b/decorations/decorationrenderer.cpp
--- a/decorations/decorationrenderer.cpp
+++ b/decorations/decorationrenderer.cpp
@@ -40,12 +40,12 @@
     , m_imageSizesDirty(true)
 {
     auto markImageSizesDirty = [this]{
+        schedule(m_client->client()->rect());
         m_imageSizesDirty = true;
     };
     connect(client->client(), &AbstractClient::screenScaleChanged, this, markImageSizesDirty);
     connect(client->decoration(), &KDecoration2::Decoration::bordersChanged, this, markImageSizesDirty);
-    connect(client->decoratedClient(), &KDecoration2::DecoratedClient::widthChanged, this, markImageSizesDirty);
-    connect(client->decoratedClient(), &KDecoration2::DecoratedClient::heightChanged, this, markImageSizesDirty);
+    connect(client->decoratedClient(), &KDecoration2::DecoratedClient::sizeChanged, this, markImageSizesDirty);
 }
 
 Renderer::~Renderer() = default;
diff --git a/plugins/scenes/opengl/scene_opengl.cpp b/plugins/scenes/opengl/scene_opengl.cpp
--- a/plugins/scenes/opengl/scene_opengl.cpp
+++ b/plugins/scenes/opengl/scene_opengl.cpp
@@ -2562,11 +2562,10 @@
 void SceneOpenGLDecorationRenderer::render()
 {
     const QRegion scheduled = getScheduled();
-    const bool dirty = areImageSizesDirty();
-    if (scheduled.isEmpty() && !dirty) {
+    if (scheduled.isEmpty()) {
         return;
     }
-    if (dirty) {
+    if (areImageSizesDirty()) {
         resizeTexture();
         resetImageSizesDirty();
     }
@@ -2579,8 +2578,6 @@
     QRect left, top, right, bottom;
     client()->client()->layoutDecorationRects(left, top, right, bottom);
 
-    const QRect geometry = dirty ? QRect(QPoint(0, 0), client()->client()->size()) : scheduled.boundingRect();
-
     // We pad each part in the decoration atlas in order to avoid texture bleeding.
     const int padding = 1;
 
@@ -2634,6 +2631,8 @@
         m_texture->update(image, (position + dirtyOffset - viewport.topLeft()) * image.devicePixelRatio());
     };
 
+    const QRect geometry = scheduled.boundingRect();
+
     const QPoint topPosition(padding, padding);
     const QPoint bottomPosition(padding, topPosition.y() + top.height() + 2 * padding);
     const QPoint leftPosition(padding, bottomPosition.y() + bottom.height() + 2 * padding);
diff --git a/plugins/scenes/xrender/scene_xrender.cpp b/plugins/scenes/xrender/scene_xrender.cpp
--- a/plugins/scenes/xrender/scene_xrender.cpp
+++ b/plugins/scenes/xrender/scene_xrender.cpp
@@ -1229,7 +1229,6 @@
     if (areImageSizesDirty()) {
         resizePixmaps();
         resetImageSizesDirty();
-        scheduled = client()->client()->decorationRect();
     }
 
     const QRect top(QPoint(0, 0), m_sizes[int(DecorationPart::Top)]);