diff --git a/src/visualisations/projectmvisualisation.cpp b/src/visualisations/projectmvisualisation.cpp
index 48d44de53..993894520 100644
--- a/src/visualisations/projectmvisualisation.cpp
+++ b/src/visualisations/projectmvisualisation.cpp
@@ -48,12 +48,14 @@
 #include <GL/gl.h>
 #endif
 
-ProjectMVisualisation::ProjectMVisualisation(QObject* parent)
-    : QGraphicsScene(parent),
+ProjectMVisualisation::ProjectMVisualisation(VisualisationContainer* container)
+    : QGraphicsScene(container),
       preset_model_(nullptr),
       mode_(Random),
       duration_(15),
-      texture_size_(512) {
+      texture_size_(512),
+      pixel_ratio_(container->devicePixelRatio()),
+      container_(container) {
   connect(this, SIGNAL(sceneRectChanged(QRectF)),
           SLOT(SceneRectChanged(QRectF)));
 
@@ -143,14 +145,21 @@ void ProjectMVisualisation::drawBackground(QPainter* p, const QRectF&) {
     InitProjectM();
   }
 
-  projectm_->projectM_resetGL(sceneRect().width(), sceneRect().height());
+  projectm_->projectM_resetGL(sceneRect().width() * pixel_ratio_,
+                              sceneRect().height() * pixel_ratio_);
   projectm_->renderFrame();
 
   p->endNativePainting();
 }
 
 void ProjectMVisualisation::SceneRectChanged(const QRectF& rect) {
-  if (projectm_) projectm_->projectM_resetGL(rect.width(), rect.height());
+  // NOTE: This should be updated on a QScreen dpi change signal. Accessing the
+  // QScreen becomes a lot easier in Qt 5.14 with QWidget::screen().
+  pixel_ratio_ = container_->devicePixelRatio();
+
+  if (projectm_)
+    projectm_->projectM_resetGL(rect.width() * pixel_ratio_,
+                                rect.height() * pixel_ratio_);
 }
 
 void ProjectMVisualisation::SetTextureSize(int size) {
diff --git a/src/visualisations/projectmvisualisation.h b/src/visualisations/projectmvisualisation.h
index a0dd279d0..159abb57e 100644
--- a/src/visualisations/projectmvisualisation.h
+++ b/src/visualisations/projectmvisualisation.h
@@ -29,12 +29,14 @@ class projectM;
 
 class ProjectMPresetModel;
 
+class VisualisationContainer;
+
 class QTemporaryFile;
 
 class ProjectMVisualisation : public QGraphicsScene, public BufferConsumer {
   Q_OBJECT
  public:
-  ProjectMVisualisation(QObject* parent = nullptr);
+  ProjectMVisualisation(VisualisationContainer* container);
   ~ProjectMVisualisation();
 
   enum Mode {
@@ -87,6 +89,12 @@ class ProjectMVisualisation : public QGraphicsScene, public BufferConsumer {
   std::vector<int> default_rating_list_;
 
   int texture_size_;
+  // As of version 5.6, Qt supports automatic scaling for high-DPI displays. We
+  // need to know the pixel ratio so that we can convert coordinates for
+  // projectM.
+  // https://doc.qt.io/qt-5/highdpi.html
+  qreal pixel_ratio_;
+  VisualisationContainer* container_;
 };
 
 #endif  // PROJECTMVISUALISATION_H