--- src/plugins/platforms/eglfs/api/qeglfsscreen.cpp.old	2020-06-03 19:21:11.674630268 +0200
+++ src/plugins/platforms/eglfs/api/qeglfsscreen.cpp	2020-06-03 19:35:33.065901734 +0200
@@ -51,6 +51,49 @@
 
 QT_BEGIN_NAMESPACE
 
+namespace {
+
+static inline QSizeF swapForRotation(QSizeF const &sz) {
+    static int rotation = qEnvironmentVariableIntValue("QT_QPA_EGLFS_ROTATION");
+    switch (rotation) {
+    case 0:
+    case 180:
+    case -180:
+		return sz;
+    case 90:
+    case -90: {
+		return QSizeF {sz.height(), sz.width()};
+    }
+    default:
+        qWarning("Invalid rotation %d specified in QT_QPA_EGLFS_ROTATION", rotation);
+        break;
+	}	
+	return sz;
+}
+
+static inline QDpi swapForRotation(QDpi const &dpi) {
+    static int rotation = qEnvironmentVariableIntValue("QT_QPA_EGLFS_ROTATION");
+    switch (rotation) {
+    case 0:
+    case 180:
+    case -180:
+		return dpi;
+    case 90:
+    case -90: {
+		return QDpi {dpi.second, dpi.first};
+    }
+    default:
+        qWarning("Invalid rotation %d specified in QT_QPA_EGLFS_ROTATION", rotation);
+        break;
+	}	
+	return dpi;
+}
+
+
+
+}
+
+
 QEglFSScreen::QEglFSScreen(EGLDisplay dpy)
     : m_dpy(dpy),
       m_surface(EGL_NO_SURFACE),
@@ -109,12 +152,12 @@
 
 QSizeF QEglFSScreen::physicalSize() const
 {
-    return qt_egl_device_integration()->physicalScreenSize();
+    return swapForRotation(qt_egl_device_integration()->physicalScreenSize());
 }
 
 QDpi QEglFSScreen::logicalDpi() const
 {
-    return qt_egl_device_integration()->logicalDpi();
+    return swapForRotation(qt_egl_device_integration()->logicalDpi());
 }
 
 qreal QEglFSScreen::pixelDensity() const