From 414951e42cdc49f6e3091978d1822bfb1b636cbd Mon Sep 17 00:00:00 2001
From: Andrew <18502096+classicrocker883@users.noreply.github.com>
Date: Sat, 3 May 2025 21:08:27 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=B8=20Fix=20ProUI=20LCD=20wake=20up=20?=
 =?UTF-8?q?(#27832)?=
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---
 Marlin/src/lcd/e3v2/proui/dwin.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Marlin/src/lcd/e3v2/proui/dwin.cpp b/Marlin/src/lcd/e3v2/proui/dwin.cpp
index 2b6087385e..aa77704786 100644
--- a/Marlin/src/lcd/e3v2/proui/dwin.cpp
+++ b/Marlin/src/lcd/e3v2/proui/dwin.cpp
@@ -1957,7 +1957,10 @@ void MarlinUI::update() {
 }
 
 #if HAS_LCD_BRIGHTNESS
-  void MarlinUI::_set_brightness() { dwinLCDBrightness(backlight ? brightness : 0); }
+  void MarlinUI::_set_brightness() {
+    if (!backlight) wait_for_user = true;
+    dwinLCDBrightness(backlight ? brightness : 0);
+  }
 #endif
 
 void MarlinUI::kill_screen(FSTR_P const lcd_error, FSTR_P const) {
@@ -2273,7 +2276,7 @@ void setMoveZ() { hmiValue.axis = Z_AXIS; setPFloatOnClick(Z_MIN_POS, Z_MAX_POS,
   void applyBrightness() { ui.set_brightness(menuData.value); }
   void liveBrightness() { dwinLCDBrightness(menuData.value); }
   void setBrightness() { setIntOnClick(LCD_BRIGHTNESS_MIN, LCD_BRIGHTNESS_MAX, ui.brightness, applyBrightness, liveBrightness); }
-  void turnOffBacklight() { hmiSaveProcessID(ID_WaitResponse); ui.set_brightness(0); dwinRedrawScreen(); }
+  void turnOffBacklight() { ui.set_brightness(0); dwinRedrawScreen(); }
 #endif
 
 #if ENABLED(CASE_LIGHT_MENU)