From b2d3c8aedd458cd63090922bd8b86bba24bd1ed9 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Mon, 29 May 2017 15:15:13 -0500
Subject: [PATCH] Have G28 do a refresh of the display

---
 Marlin/Marlin_main.cpp | 2 ++
 Marlin/ultralcd.h      | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index b26f3ec278..b742533c43 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -3798,6 +3798,8 @@ inline void gcode_G28(const bool always_home_all) {
     tool_change(old_tool_index, 0, true);
   #endif
 
+  lcd_refresh();
+
   report_current_position();
 
   #if ENABLED(DEBUG_LEVELING_FEATURE)
diff --git a/Marlin/ultralcd.h b/Marlin/ultralcd.h
index 36f3b7d656..13da79e8a5 100644
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@@ -46,6 +46,9 @@
   void kill_screen(const char* lcd_msg);
   bool lcd_detected(void);
 
+  extern uint8_t lcdDrawUpdate;
+  inline void lcd_refresh() { lcdDrawUpdate = LCDVIEW_CLEAR_CALL_REDRAW; }
+
   #if HAS_BUZZER
     void lcd_buzz(long duration, uint16_t freq);
   #endif
@@ -158,6 +161,7 @@
   inline void lcd_buttons_update() {}
   inline void lcd_reset_alert_level() {}
   inline bool lcd_detected() { return true; }
+  inline void lcd_refresh() {}
 
   #define LCD_MESSAGEPGM(x) NOOP
   #define LCD_ALERTMESSAGEPGM(x) NOOP