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Description: use 128 as a reference DPI for small screens
Origin: upstream, https://code.qt.io/cgit/qt/qtbase.git/commit/?id=5e6bbbc1b86905c4
Last-Update: 2018-10-29
---
src/plugins/platforms/xcb/qxcbscreen.cpp | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -746,7 +746,11 @@ void QXcbScreen::updateGeometry(const QR
m_sizeMillimeters = sizeInMillimeters(geometry.size(), m_virtualDesktop->dpi());
qreal dpi = geometry.width() / physicalSize().width() * qreal(25.4);
- m_pixelDensity = qMax(1, qRound(dpi/96));
+
+ // Use 128 as a reference DPI on small screens. This favors "small UI" over "large UI".
+ qreal referenceDpi = physicalSize().width() <= 320 ? 128 : 96;
+
+ m_pixelDensity = qMax(1, qRound(dpi/referenceDpi));
m_geometry = geometry;
m_availableGeometry = geometry & m_virtualDesktop->workArea();
QWindowSystemInterface::handleScreenGeometryChange(QPlatformScreen::screen(), m_geometry, m_availableGeometry);
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