diff --git a/setup b/setup
index 6cbfa8e..1088a73 100755
--- a/setup
+++ b/setup
@@ -392,8 +392,24 @@ if [ $scriptAction == 'INSTALL' ]; then
 			echo "display_hdmi_rotate=2" >> "$configFile.tmp"
 		fi
 	fi
-    echo "#### RpiDisplaySetup end" >> "$configFile.tmp"    
-    
+    echo "#### RpiDisplaySetup end" >> "$configFile.tmp"
+
+	# patch start-gui.sh for Qt touch rotation when display_lcd_rotate is used
+	startGuiSh="/opt/victronenergy/gui/start-gui.sh"
+	if [ -f "$setupOptionsDir/altRotateDisplay" ]; then
+		if ! grep -q "QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS" "$startGuiSh" 2>/dev/null; then
+			logMessage "patching start-gui.sh for Qt touch rotation 180"
+			sed -i 's|export QT_QPA_PLATFORM=linuxfb|export QT_QPA_PLATFORM=linuxfb\n\texport QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/touchscreen0:rotate=180|' "$startGuiSh"
+			restartGui=true
+		fi
+	else
+		if grep -q "QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS" "$startGuiSh" 2>/dev/null; then
+			logMessage "removing Qt touch rotation patch from start-gui.sh"
+			sed -i '/QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS/d' "$startGuiSh"
+			restartGui=true
+		fi
+	fi
+
     # detect changes
     cmp -s $configFile "$configFile.tmp" > /dev/null
     if (( $? == 1 )); then