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Fix LCD throttle issue (#18055)

Fixes #18044
Giuliano Zaro 5 years ago
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0b0ba7dcf6
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1 changed files with 1 additions and 1 deletions
  1. 1
    1
      Marlin/src/lcd/ultralcd.cpp

+ 1
- 1
Marlin/src/lcd/ultralcd.cpp View File

@@ -881,7 +881,7 @@ void MarlinUI::update() {
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     // Instead of tracking changes just redraw the Status Screen once per second.
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     if (on_status_screen() && !lcd_status_update_delay--) {
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       lcd_status_update_delay = TERN(HAS_GRAPHICAL_LCD, 12, 9);
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-      max_display_update_time--;
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+      if (max_display_update_time) max_display_update_time--;  // Be sure never go to a very big number
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       refresh(LCDVIEW_REDRAW_NOW);
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     }
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