5 files changed, 15 insertions, 2 deletions
diff --git a/src/widgets/kernel/qdesktopwidget.cpp b/src/widgets/kernel/qdesktopwidget.cpp
index 4fbe6bba3f..9e90adec46 100644
--- a/src/widgets/kernel/qdesktopwidget.cpp
+++ b/src/widgets/kernel/qdesktopwidget.cpp
@@ -211,7 +211,9 @@ QDesktopWidget::QDesktopWidget()
     setObjectName(QLatin1String("desktop"));
     d->_q_updateScreens();
     connect(qApp, SIGNAL(screenAdded(QScreen*)), this, SLOT(_q_updateScreens()));
+#if QT_DEPRECATED_SINCE(5, 11)
     connect(qApp, SIGNAL(primaryScreenChanged(QScreen*)), this, SIGNAL(primaryScreenChanged()));
+#endif
 }
 
 QDesktopWidget::~QDesktopWidget()
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 588bed0366..74aebd1223 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -2914,6 +2914,8 @@ void QWidget::setWindowState(Qt::WindowStates newstate)
 {
     Q_D(QWidget);
     Qt::WindowStates oldstate = windowState();
+    if (newstate.testFlag(Qt::WindowMinimized)) // QTBUG-46763
+       newstate.setFlag(Qt::WindowActive, false);
     if (oldstate == newstate)
         return;
     if (isWindow() && !testAttribute(Qt::WA_WState_Created))
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 88c6c288e8..3f57992311 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -5035,6 +5035,14 @@ QSize QStyleSheetStyle::sizeFromContents(ContentsType ct, const QStyleOption *op
                 QRenderRule subRule = renderRule(w, opt, PseudoElement_HeaderViewSection);
                 if (subRule.hasGeometry() || subRule.hasBox() || !subRule.hasNativeBorder() || subRule.hasFont) {
                     sz = subRule.adjustSize(csz);
+                    if (!sz.isValid()) {
+                        // Try to set the missing values based on the base style.
+                        const auto baseSize = baseStyle()->sizeFromContents(ct, opt, sz, w);
+                        if (sz.width() < 0)
+                            sz.setWidth(baseSize.width());
+                        if (sz.height() < 0)
+                            sz.setHeight(baseSize.height());
+                    }
                     if (!subRule.hasGeometry()) {
                         QSize nativeContentsSize;
                         bool nullIcon = hdr->icon.isNull();
diff --git a/src/widgets/util/qscroller.cpp b/src/widgets/util/qscroller.cpp
index 1e84237253..df05bbf71c 100644
--- a/src/widgets/util/qscroller.cpp
+++ b/src/widgets/util/qscroller.cpp
@@ -1031,7 +1031,8 @@ void QScrollerPrivate::setDpi(const QPointF &dpi)
 */
 void QScrollerPrivate::setDpiFromWidget(QWidget *widget)
 {
-    const QScreen *screen = QGuiApplication::screens().at(QApplication::desktop()->screenNumber(widget));
+    const QScreen *screen = widget ? widget->screen() : QGuiApplication::primaryScreen();
+    Q_ASSERT(screen);
     setDpi(QPointF(screen->physicalDotsPerInchX(), screen->physicalDotsPerInchY()));
 }
 
diff --git a/src/widgets/widgets/qeffects.cpp b/src/widgets/widgets/qeffects.cpp
index 9463641369..7069ef0368 100644
--- a/src/widgets/widgets/qeffects.cpp
+++ b/src/widgets/widgets/qeffects.cpp
@@ -99,7 +99,7 @@ static QAlphaWidget* q_blend = 0;
   Constructs a QAlphaWidget.
 */
 QT_WARNING_PUSH
-QT_WARNING_DISABLE_DEPRECATED // QDesktopWidget::screen()
+QT_WARNING_DISABLE_DEPRECATED // ### Qt 6: Find a replacement for QDesktopWidget::screen()
 QAlphaWidget::QAlphaWidget(QWidget* w, Qt::WindowFlags f)
     : QWidget(QApplication::desktop()->screen(QDesktopWidgetPrivate::screenNumber(w)), f)
 {