diff --git a/frame/util/docksettings.cpp b/frame/util/docksettings.cpp
index d8c42cbf1..33a6a210c 100644
--- a/frame/util/docksettings.cpp
+++ b/frame/util/docksettings.cpp
@@ -691,6 +691,8 @@ void DockSettings::monitorAdded(const QString &path)
     connect(inter, &MonitorInter::YChanged, mon, &Monitor::setY);
     connect(inter, &MonitorInter::WidthChanged, mon, &Monitor::setW);
     connect(inter, &MonitorInter::HeightChanged, mon, &Monitor::setH);
+    connect(inter, &MonitorInter::WidthChanged, this, &DockSettings::requestUpdateRegionWatch);
+    connect(inter, &MonitorInter::HeightChanged, this, &DockSettings::requestUpdateRegionWatch);
     connect(inter, &MonitorInter::MmWidthChanged, mon, &Monitor::setMmWidth);
     connect(inter, &MonitorInter::MmHeightChanged, mon, &Monitor::setMmHeight);
     connect(inter, &MonitorInter::RotationChanged, mon, &Monitor::setRotate);
diff --git a/frame/util/docksettings.h b/frame/util/docksettings.h
index 1b4984152..e030e61a5 100644
--- a/frame/util/docksettings.h
+++ b/frame/util/docksettings.h
@@ -93,6 +93,8 @@ signals:
     void windowGeometryChanged() const;
     void opacityChanged(const quint8 value) const;
     void trayCountChanged() const;
+    // 分标率发生变化，需要更新XEventMonitor的监视区域
+    void requestUpdateRegionWatch();
 
 public slots:
     void updateGeometry();
diff --git a/frame/window/mainwindow.cpp b/frame/window/mainwindow.cpp
index 6a88bc8de..793f3bd78 100755
--- a/frame/window/mainwindow.cpp
+++ b/frame/window/mainwindow.cpp
@@ -504,6 +504,7 @@ void MainWindow::initConnections()
     connect(m_dragWidget, &DragWidget::dragFinished, this, &MainWindow::onDragFinished);
     connect(DGuiApplicationHelper::instance(), &DGuiApplicationHelper::themeTypeChanged, this, &MainWindow::themeTypeChanged);
     connect(m_eventInter, &XEventMonitor::CursorMove, this, &MainWindow::onRegionMonitorChanged);
+    connect(m_settings,&DockSettings::requestUpdateRegionWatch,this,&MainWindow::updateRegionMonitorWatch);
 }
 
 //const QPoint MainWindow::x11GetWindowPos()