diff --git a/src/QuickEditor/QuickEditor.cpp b/src/QuickEditor/QuickEditor.cpp
--- a/src/QuickEditor/QuickEditor.cpp
+++ b/src/QuickEditor/QuickEditor.cpp
@@ -272,9 +272,6 @@
     }
 
     return newTopLeftX;
-
-
-
 }
 
 int QuickEditor::boundsUp(int newTopLeftY, const bool mouse)
@@ -485,12 +482,26 @@
 
 void QuickEditor::paintEvent(QPaintEvent*)
 {
+    // Fix dual screen offset issue in X11
+    int newX = x();
+    int newY = y();
+    if (newX < 0 || newY < 0) {
+        if (newX < 0) {
+            newX = 0;
+        }
+        if (newY < 0) {
+            newY = 0;
+        }
+        move(newX, newY);
+    }
+
     QPainter painter(this);
     painter.setRenderHints(QPainter::Antialiasing);
     QBrush brush(mPixmap);
     brush.setTransform(QTransform().scale(dprI, dprI));
     painter.setBackground(brush);
-    painter.eraseRect(geometry());
+    // DON'T use geometry() because the widget position is not always (0, 0)
+    painter.eraseRect(QRect(0, 0, width(), height()));
     if (!mSelection.size().isEmpty() || mMouseDragState != MouseState::None) {
         painter.fillRect(mSelection, mStrokeColor);
         const QRectF innerRect = mSelection.adjusted(1, 1, -1, -1);
@@ -754,7 +765,8 @@
 
 void QuickEditor::drawMidHelpText(QPainter &painter)
 {
-    painter.fillRect(geometry(), mMaskColor);
+    // DON'T use geometry() because the widget position is not always (0, 0)
+    painter.fillRect(QRect(0, 0, width(), height()), mMaskColor);
     painter.setFont(mMidHelpTextFont);
     QRect textSize = painter.boundingRect(QRect(), Qt::AlignCenter, mMidHelpText);
     QPoint pos((mPrimaryScreenGeo.width() - textSize.width()) / 2 + mPrimaryScreenGeo.x(), (height() - textSize.height()) / 2);