From a82e3147fdfbc7e6db90d90378acc19e64bd5a4d Mon Sep 17 00:00:00 2001
From: InsanityAutomation
 <38436470+InsanityAutomation@users.noreply.github.com>
Date: Fri, 13 May 2022 19:54:23 -0400
Subject: [PATCH] Adjust startup delay for fast machines with higher res
 displays

---
 Marlin/src/lcd/extui/Creality/Creality_DWIN.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Marlin/src/lcd/extui/Creality/Creality_DWIN.cpp b/Marlin/src/lcd/extui/Creality/Creality_DWIN.cpp
index d070404b8e..15f89e8ad9 100644
--- a/Marlin/src/lcd/extui/Creality/Creality_DWIN.cpp
+++ b/Marlin/src/lcd/extui/Creality/Creality_DWIN.cpp
@@ -90,7 +90,12 @@ void onStartup()
 	rtscheck.recdat.head[1] = rtscheck.snddat.head[1] = FHTWO;
 	memset(rtscheck.databuf, 0, sizeof(rtscheck.databuf));
 
-  delay_ms(500); // Delay to allow screen startup
+  #if ENABLED(DWINOS_4)
+    #define DWIN_BOOTUP_DELAY 1500
+  #else
+    #define DWIN_BOOTUP_DELAY 500
+  #endif
+  delay_ms(DWIN_BOOTUP_DELAY); // Delay to allow screen startup
   SetTouchScreenConfiguration();
   rtscheck.RTS_SndData(StartSoundSet, SoundAddr);
   delay_ms(400); // Delay to allow screen to configure