diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp

index ec0f9ba..6d0d7a6 100644

--- a/src/plugins/platforms/xcb/qxcbscreen.cpp

+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp

@@ -747,7 +747,7 @@ void QXcbScreen::updateGeometry(const QRect &geometry, uint8_t rotation)

         m_sizeMillimeters = sizeInMillimeters(geometry.size(), virtualDpi());

     qreal dpi = geometry.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 = geometry;

     m_availableGeometry = geometry & m_virtualDesktop->workArea();

     QWindowSystemInterface::handleScreenGeometryChange(QPlatformScreen::screen(), m_geometry, m_availableGeometry);