diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp
index 5e136b5..0ad2842 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -620,7 +620,7 @@ void QXcbScreen::updateGeometry(const QRect &geom, uint8_t rotation)
         m_sizeMillimeters = sizeInMillimeters(xGeometry.size(), virtualDpi());

     qreal dpi = xGeometry.width() / physicalSize().width() * qreal(25.4);
-    m_pixelDensity = qMax(1, qRound(dpi/96));
+    m_pixelDensity = qMax(1, (int) (dpi/96)); // instead of rounding at 1.5, round at 2.0 (same as GNOME)
     m_geometry = QRect(xGeometry.topLeft(), xGeometry.size());
     m_availableGeometry = xGeometry & m_virtualDesktop->workArea();
     QWindowSystemInterface::handleScreenGeometryChange(QPlatformScreen::screen(), m_geometry, m_availableGeometry);