♻️ Display sleep minutes, encoder disable option (#24618)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/Configuration.h

@@ -3159,7 +3159,8 @@
   #define BUTTON_DELAY_EDIT      50 // (ms) Button repeat delay for edit screens
   #define BUTTON_DELAY_MENU     250 // (ms) Button repeat delay for menus
 
-  //#define TOUCH_IDLE_SLEEP 300 // (s) Turn off the TFT backlight if set (5mn)
+  //#define DISABLE_ENCODER         // Disable the click encoder, if any
+  //#define TOUCH_IDLE_SLEEP_MINS 5 // (minutes) Display Sleep after a period of inactivity. Set with M255 S.
 
   #define TOUCH_SCREEN_CALIBRATION
 

Marlin/Configuration_adv.h

@@ -1321,7 +1321,7 @@
 //
 // LCD Backlight Timeout
 //
-//#define LCD_BACKLIGHT_TIMEOUT 30 // (s) Timeout before turning off the backlight
+//#define LCD_BACKLIGHT_TIMEOUT_MINS 1  // (minutes) Timeout before turning off the backlight
 
 #if HAS_BED_PROBE && EITHER(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
   //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
@@ -1739,7 +1739,7 @@
    * Adds the menu item Configuration > LCD Timeout (m) to set a wait period
    * from 0 (disabled) to 99 minutes.
    */
-  //#define DISPLAY_SLEEP_MINUTES 2  // (minutes) Timeout before turning off the screen
+  //#define DISPLAY_SLEEP_MINUTES 2  // (minutes) Timeout before turning off the screen. Set with M255 S.
 
   /**
    * ST7920-based LCDs can emulate a 16 x 4 character display using

Marlin/src/gcode/lcd/M255.cpp

@@ -32,12 +32,11 @@
  */
 void GcodeSuite::M255() {
   if (parser.seenval('S')) {
-    #if HAS_DISPLAY_SLEEP
     const int m = parser.value_int();
-      ui.sleep_timeout_minutes = constrain(m, SLEEP_TIMEOUT_MIN, SLEEP_TIMEOUT_MAX);
+    #if HAS_DISPLAY_SLEEP
+      ui.sleep_timeout_minutes = constrain(m, ui.sleep_timeout_min, ui.sleep_timeout_max);
     #else
-      const unsigned int s = parser.value_ushort() * 60;
-      ui.lcd_backlight_timeout = constrain(s, LCD_BKL_TIMEOUT_MIN, LCD_BKL_TIMEOUT_MAX);
+      ui.backlight_timeout_minutes = constrain(m, ui.backlight_timeout_min, ui.backlight_timeout_max);
     #endif
   }
   else
@@ -47,11 +46,8 @@ void GcodeSuite::M255() {
 void GcodeSuite::M255_report(const bool forReplay/*=true*/) {
   report_heading_etc(forReplay, F(STR_DISPLAY_SLEEP));
   SERIAL_ECHOLNPGM("  M255 S",
-    #if HAS_DISPLAY_SLEEP
-      ui.sleep_timeout_minutes, " ; (minutes)"
-    #else
-      ui.lcd_backlight_timeout, " ; (seconds)"
-    #endif
+    TERN(HAS_DISPLAY_SLEEP, ui.sleep_timeout_minutes, ui.backlight_timeout_minutes),
+    " ; (minutes)"
   );
 }
 

Marlin/src/inc/Conditionals_LCD.h

@@ -1599,7 +1599,7 @@
 
 // This emulated DOGM has 'touch/xpt2046', not 'tft/xpt2046'
 #if ENABLED(TOUCH_SCREEN)
-  #if TOUCH_IDLE_SLEEP
+  #if TOUCH_IDLE_SLEEP_MINS
     #define HAS_TOUCH_SLEEP 1
   #endif
   #if NONE(TFT_TOUCH_DEVICE_GT911, TFT_TOUCH_DEVICE_XPT2046)

Marlin/src/inc/Conditionals_adv.h

@@ -647,10 +647,10 @@
 #if ALL(HAS_RESUME_CONTINUE, PRINTER_EVENT_LEDS, SDSUPPORT)
   #define HAS_LEDS_OFF_FLAG 1
 #endif
-#ifdef DISPLAY_SLEEP_MINUTES
+#ifdef DISPLAY_SLEEP_MINUTES || TOUCH_IDLE_SLEEP_MINS
   #define HAS_DISPLAY_SLEEP 1
 #endif
-#if HAS_DISPLAY_SLEEP || LCD_BACKLIGHT_TIMEOUT
+#if HAS_DISPLAY_SLEEP || LCD_BACKLIGHT_TIMEOUT_MINS
   #define HAS_GCODE_M255 1
 #endif
 

Marlin/src/inc/Conditionals_post.h

@@ -3761,6 +3761,10 @@
   #define HAS_ROTARY_ENCODER 1
 #endif
 
+#if DISABLED(DISABLE_ENCODER) && ANY(HAS_ROTARY_ENCODER, HAS_ADC_BUTTONS) && ANY(TFT_CLASSIC_UI, TFT_COLOR_UI)
+  #define HAS_BACK_ITEM 1
+#endif
+
 #if PIN_EXISTS(SAFE_POWER) && DISABLED(DISABLE_DRIVER_SAFE_POWER_PROTECT)
   #define HAS_DRIVER_SAFE_POWER_PROTECT 1
 #endif

Marlin/src/inc/SanityCheck.h

@@ -642,6 +642,10 @@
   #error "LEVEL_CORNERS_* settings have been renamed BED_TRAMMING_*."
 #elif defined(LEVEL_CENTER_TOO)
   #error "LEVEL_CENTER_TOO is now BED_TRAMMING_INCLUDE_CENTER."
+#elif defined(TOUCH_IDLE_SLEEP)
+  #error "TOUCH_IDLE_SLEEP (seconds) is now TOUCH_IDLE_SLEEP_MINS (minutes)."
+#elif defined(LCD_BACKLIGHT_TIMEOUT)
+  #error "LCD_BACKLIGHT_TIMEOUT (seconds) is now LCD_BACKLIGHT_TIMEOUT_MINS (minutes)."
 #endif
 
 // L64xx stepper drivers have been removed
@@ -3030,11 +3034,11 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
   #endif
 #endif
 
-#if LCD_BACKLIGHT_TIMEOUT
+#if LCD_BACKLIGHT_TIMEOUT_MINS
   #if !HAS_ENCODER_ACTION
-    #error "LCD_BACKLIGHT_TIMEOUT requires an LCD with encoder or keypad."
+    #error "LCD_BACKLIGHT_TIMEOUT_MINS requires an LCD with encoder or keypad."
   #elif !PIN_EXISTS(LCD_BACKLIGHT)
-    #error "LCD_BACKLIGHT_TIMEOUT requires LCD_BACKLIGHT_PIN."
+    #error "LCD_BACKLIGHT_TIMEOUT_MINS requires LCD_BACKLIGHT_PIN."
   #endif
 #endif
 

Marlin/src/lcd/dogm/marlinui_DOGM.cpp

@@ -343,8 +343,7 @@ void MarlinUI::draw_kill_screen() {
 void MarlinUI::clear_lcd() { } // Automatically cleared by Picture Loop
 
 #if HAS_DISPLAY_SLEEP
-  void MarlinUI::sleep_on()  { u8g.sleepOn(); }
-  void MarlinUI::sleep_off() { u8g.sleepOff(); }
+  void MarlinUI::sleep_display(const bool sleep)  { sleep ? u8g.sleepOn() : u8g.sleepOff(); }
 #endif
 
 #if HAS_LCD_BRIGHTNESS

Marlin/src/lcd/language/language_de.h

@@ -407,7 +407,6 @@ namespace Language_de {
   LSTR MSG_ADVANCE_K_E                    = _UxGT("Vorschubfaktor *");
   LSTR MSG_CONTRAST                       = _UxGT("LCD-Kontrast");
   LSTR MSG_BRIGHTNESS                     = _UxGT("LCD-Helligkeit");
-  LSTR MSG_LCD_TIMEOUT_SEC                = _UxGT("LCD-Ruhezustand (s)");
   LSTR MSG_SCREEN_TIMEOUT                 = _UxGT("LCD Timeout (m)");
   LSTR MSG_BRIGHTNESS_OFF                 = _UxGT("LCD ausschalten");
   LSTR MSG_STORE_EEPROM                   = _UxGT("Konfig. speichern");

Marlin/src/lcd/language/language_en.h

@@ -422,7 +422,6 @@ namespace Language_en {
   LSTR MSG_ADVANCE_K_E                    = _UxGT("Advance K *");
   LSTR MSG_CONTRAST                       = _UxGT("LCD Contrast");
   LSTR MSG_BRIGHTNESS                     = _UxGT("LCD Brightness");
-  LSTR MSG_LCD_TIMEOUT_SEC                = _UxGT("LCD Timeout (s)");
   LSTR MSG_SCREEN_TIMEOUT                 = _UxGT("LCD Timeout (m)");
   LSTR MSG_BRIGHTNESS_OFF                 = _UxGT("Backlight Off");
   LSTR MSG_STORE_EEPROM                   = _UxGT("Store Settings");

Marlin/src/lcd/language/language_fr.h

@@ -321,7 +321,7 @@ namespace Language_fr {
   LSTR MSG_ADVANCE_K_E                    = _UxGT("Avance K *");
   LSTR MSG_BRIGHTNESS                     = _UxGT("Luminosité LCD");
   LSTR MSG_CONTRAST                       = _UxGT("Contraste LCD");
-  LSTR MSG_LCD_TIMEOUT_SEC                = _UxGT("Veille LCD (s)");
+  LSTR MSG_SCREEN_TIMEOUT                 = _UxGT("Veille LCD (m)");
   LSTR MSG_BRIGHTNESS_OFF                 = _UxGT("Éteindre l'écran LCD");
   LSTR MSG_STORE_EEPROM                   = _UxGT("Enregistrer config.");
   LSTR MSG_LOAD_EEPROM                    = _UxGT("Charger config.");

Marlin/src/lcd/language/language_it.h

@@ -418,7 +418,6 @@ namespace Language_it {
   LSTR MSG_ADVANCE_K_E                    = _UxGT("K Avanzamento *");
   LSTR MSG_CONTRAST                       = _UxGT("Contrasto LCD");
   LSTR MSG_BRIGHTNESS                     = _UxGT("Luminosità LCD");
-  LSTR MSG_LCD_TIMEOUT_SEC                = _UxGT("Timeout LCD (s)");
   LSTR MSG_SCREEN_TIMEOUT                 = _UxGT("Timeout LCD (m)");
   LSTR MSG_BRIGHTNESS_OFF                 = _UxGT("Spegni Retroillum.");
   LSTR MSG_STORE_EEPROM                   = _UxGT("Salva impostazioni");

Marlin/src/lcd/language/language_sk.h

@@ -419,7 +419,6 @@ namespace Language_sk {
   LSTR MSG_ADVANCE_K_E                    = _UxGT("K pre posun *");
   LSTR MSG_CONTRAST                       = _UxGT("Kontrast LCD");
   LSTR MSG_BRIGHTNESS                     = _UxGT("Jas LCD");
-  LSTR MSG_LCD_TIMEOUT_SEC                = _UxGT("Čas. limit LCD (s)");
   LSTR MSG_SCREEN_TIMEOUT                 = _UxGT("Čas. limit LCD (m)");
   LSTR MSG_BRIGHTNESS_OFF                 = _UxGT("Podsviet. vyp.");
   LSTR MSG_STORE_EEPROM                   = _UxGT("Uložiť nastavenie");

Marlin/src/lcd/language/language_uk.h

@@ -455,7 +455,7 @@ namespace Language_uk {
     LSTR MSG_CONTRAST                       = _UxGT("Контраст");
     LSTR MSG_BRIGHTNESS                     = _UxGT("Яскравість");
   #endif
-  LSTR MSG_LCD_TIMEOUT_SEC                  = _UxGT("LCD Таймаут, с");
+  LSTR MSG_SCREEN_TIMEOUT                   = _UxGT("LCD Таймаут, x");
   LSTR MSG_BRIGHTNESS_OFF                   = _UxGT("Підсвітка вимк.");
   LSTR MSG_STORE_EEPROM                     = _UxGT("Зберегти в EEPROM");
   LSTR MSG_LOAD_EEPROM                      = _UxGT("Зчитати з EEPROM");

Marlin/src/lcd/marlinui.cpp

@@ -174,22 +174,26 @@ constexpr uint8_t epps = ENCODER_PULSES_PER_STEP;
   volatile int8_t encoderDiff; // Updated in update_buttons, added to encoderPosition every LCD update
 #endif
 
-#if LCD_BACKLIGHT_TIMEOUT
+#if LCD_BACKLIGHT_TIMEOUT_MINS
 
-  uint16_t MarlinUI::lcd_backlight_timeout; // Initialized by settings.load()
+  constexpr uint8_t MarlinUI::backlight_timeout_min, MarlinUI::backlight_timeout_max;
+
+  uint8_t MarlinUI::backlight_timeout_minutes; // Initialized by settings.load()
   millis_t MarlinUI::backlight_off_ms = 0;
   void MarlinUI::refresh_backlight_timeout() {
-    backlight_off_ms = lcd_backlight_timeout ? millis() + lcd_backlight_timeout * 1000UL : 0;
+    backlight_off_ms = backlight_timeout_minutes ? millis() + backlight_timeout_minutes * 60UL * 1000UL : 0;
     WRITE(LCD_BACKLIGHT_PIN, HIGH);
   }
 
 #elif HAS_DISPLAY_SLEEP
 
+  constexpr uint8_t MarlinUI::sleep_timeout_min, MarlinUI::sleep_timeout_max;
+
   uint8_t MarlinUI::sleep_timeout_minutes; // Initialized by settings.load()
   millis_t MarlinUI::screen_timeout_millis = 0;
   void MarlinUI::refresh_screen_timeout() {
     screen_timeout_millis = sleep_timeout_minutes ? millis() + sleep_timeout_minutes * 60UL * 1000UL : 0;
-    sleep_off();
+    sleep_display(false);
   }
 
 #endif
@@ -1059,7 +1063,7 @@ void MarlinUI::init() {
 
           reset_status_timeout(ms);
 
-          #if LCD_BACKLIGHT_TIMEOUT
+          #if LCD_BACKLIGHT_TIMEOUT_MINS
             refresh_backlight_timeout();
           #elif HAS_DISPLAY_SLEEP
             refresh_screen_timeout();
@@ -1169,14 +1173,14 @@ void MarlinUI::init() {
           return_to_status();
       #endif
 
-      #if LCD_BACKLIGHT_TIMEOUT
+      #if LCD_BACKLIGHT_TIMEOUT_MINS
         if (backlight_off_ms && ELAPSED(ms, backlight_off_ms)) {
           WRITE(LCD_BACKLIGHT_PIN, LOW); // Backlight off
           backlight_off_ms = 0;
         }
       #elif HAS_DISPLAY_SLEEP
         if (screen_timeout_millis && ELAPSED(ms, screen_timeout_millis))
-          sleep_on();
+          sleep_display();
       #endif
 
       // Change state of drawing flag between screen updates

Marlin/src/lcd/marlinui.h

@@ -270,20 +270,19 @@ public:
     FORCE_INLINE static void refresh_brightness() { set_brightness(brightness); }
   #endif
 
-  #if LCD_BACKLIGHT_TIMEOUT
-    #define LCD_BKL_TIMEOUT_MIN 1u
-    #define LCD_BKL_TIMEOUT_MAX UINT16_MAX // Slightly more than 18 hours
-    static uint16_t lcd_backlight_timeout;
+  #if LCD_BACKLIGHT_TIMEOUT_MINS
+    static constexpr uint8_t backlight_timeout_min = 0;
+    static constexpr uint8_t backlight_timeout_max = 99;
+    static uint8_t backlight_timeout_minutes;
     static millis_t backlight_off_ms;
     static void refresh_backlight_timeout();
   #elif HAS_DISPLAY_SLEEP
-    #define SLEEP_TIMEOUT_MIN 0
-    #define SLEEP_TIMEOUT_MAX 99
+    static constexpr uint8_t sleep_timeout_min = 0;
+    static constexpr uint8_t sleep_timeout_max = 99;
     static uint8_t sleep_timeout_minutes;
     static millis_t screen_timeout_millis;
     static void refresh_screen_timeout();
-    static void sleep_on();
-    static void sleep_off();
+    static void sleep_display(const bool sleep=true);
   #endif
 
   #if HAS_DWIN_E3V2_BASIC

Marlin/src/lcd/menu/menu_configuration.cpp

@@ -547,10 +547,10 @@ void menu_configuration() {
   //
   // Set display backlight / sleep timeout
   //
-  #if LCD_BACKLIGHT_TIMEOUT && LCD_BKL_TIMEOUT_MIN < LCD_BKL_TIMEOUT_MAX
-    EDIT_ITEM(uint16_4, MSG_LCD_TIMEOUT_SEC, &ui.lcd_backlight_timeout, LCD_BKL_TIMEOUT_MIN, LCD_BKL_TIMEOUT_MAX, ui.refresh_backlight_timeout);
+  #if LCD_BACKLIGHT_TIMEOUT_MINS
+    EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.backlight_timeout_minutes, ui.backlight_timeout_min, ui.backlight_timeout_max, ui.refresh_backlight_timeout);
   #elif HAS_DISPLAY_SLEEP
-    EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.sleep_timeout_minutes, SLEEP_TIMEOUT_MIN, SLEEP_TIMEOUT_MAX, ui.refresh_screen_timeout);
+    EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.sleep_timeout_minutes, ui.sleep_timeout_min, ui.sleep_timeout_max, ui.refresh_screen_timeout);
   #endif
 
   #if ENABLED(FWRETRACT)

Marlin/src/lcd/menu/menu_item.h

@@ -402,8 +402,13 @@ class MenuItem_bool : public MenuEditItemBase {
 
 // Predefined menu item types //
 
-#define BACK_ITEM_F(FLABEL)                              MENU_ITEM_F(back, FLABEL)
-#define BACK_ITEM(LABEL)                                   MENU_ITEM(back, LABEL)
+#if HAS_BACK_ITEM
+  #define BACK_ITEM_F(FLABEL)                            MENU_ITEM_F(back, FLABEL)
+  #define BACK_ITEM(LABEL)                                 MENU_ITEM(back, LABEL)
+#else
+  #define BACK_ITEM_F(FLABEL) NOOP
+  #define BACK_ITEM(LABEL)    NOOP
+#endif
 
 #define ACTION_ITEM_N_S_F(N, S, FLABEL, ACTION)      MENU_ITEM_N_S_F(function, N, S, FLABEL, ACTION)
 #define ACTION_ITEM_N_S(N, S, LABEL, ACTION)       ACTION_ITEM_N_S_F(N, S, GET_TEXT_F(LABEL), ACTION)

Marlin/src/lcd/menu/menu_main.cpp

@@ -325,6 +325,17 @@ void menu_main() {
     SUBMENU(MSG_TEMPERATURE, menu_temperature);
   #endif
 
+  #if ENABLED(ADVANCED_PAUSE_FEATURE)
+    #if E_STEPPERS == 1 && DISABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+      YESNO_ITEM(MSG_FILAMENTCHANGE,
+        menu_change_filament, nullptr,
+        GET_TEXT_F(MSG_FILAMENTCHANGE), (const char *)nullptr, F("?")
+      );
+    #else
+      SUBMENU(MSG_FILAMENTCHANGE, menu_change_filament);
+    #endif
+  #endif
+
   #if HAS_POWER_MONITOR
     SUBMENU(MSG_POWER_MONITOR, menu_power_monitor);
   #endif
@@ -349,17 +360,6 @@ void menu_main() {
     }
   #endif
 
-  #if ENABLED(ADVANCED_PAUSE_FEATURE)
-    #if E_STEPPERS == 1 && DISABLED(FILAMENT_LOAD_UNLOAD_GCODES)
-      YESNO_ITEM(MSG_FILAMENTCHANGE,
-        menu_change_filament, nullptr,
-        GET_TEXT_F(MSG_FILAMENTCHANGE), (const char *)nullptr, F("?")
-      );
-    #else
-      SUBMENU(MSG_FILAMENTCHANGE, menu_change_filament);
-    #endif
-  #endif
-
   #if ENABLED(LCD_INFO_MENU)
     SUBMENU(MSG_INFO_MENU, menu_info);
   #endif

Marlin/src/lcd/tft/touch.cpp

@@ -302,7 +302,7 @@ bool Touch::get_point(int16_t *x, int16_t *y) {
         WRITE(TFT_BACKLIGHT_PIN, HIGH);
       #endif
     }
-    next_sleep_ms = millis() + SEC_TO_MS(TOUCH_IDLE_SLEEP);
+    next_sleep_ms = millis() + SEC_TO_MS(ui.sleep_timeout_minutes * 60);
   }
 
 #endif // HAS_TOUCH_SLEEP

Marlin/src/lcd/touch/touch_buttons.cpp

@@ -61,7 +61,7 @@ TouchButtons touchBt;
 
 void TouchButtons::init() {
   touchIO.Init();
-  TERN_(HAS_TOUCH_SLEEP, next_sleep_ms = millis() + SEC_TO_MS(TOUCH_IDLE_SLEEP));
+  TERN_(HAS_TOUCH_SLEEP, next_sleep_ms = millis() + SEC_TO_MS(ui.sleep_timeout_minutes * 60));
 }
 
 uint8_t TouchButtons::read_buttons() {
@@ -135,7 +135,7 @@ uint8_t TouchButtons::read_buttons() {
         WRITE(TFT_BACKLIGHT_PIN, HIGH);
       #endif
     }
-    next_sleep_ms = millis() + SEC_TO_MS(TOUCH_IDLE_SLEEP);
+    next_sleep_ms = millis() + SEC_TO_MS(ui.sleep_timeout_minutes * 60);
   }
 
 #endif // HAS_TOUCH_SLEEP

Marlin/src/module/settings.cpp

@@ -402,8 +402,8 @@ typedef struct SettingsDataStruct {
   //
   // Display Sleep
   //
-  #if LCD_BACKLIGHT_TIMEOUT
-    uint16_t lcd_backlight_timeout;                     // M255 S
+  #if LCD_BACKLIGHT_TIMEOUT_MINS
+    uint8_t backlight_timeout_minutes;                  // M255 S
   #elif HAS_DISPLAY_SLEEP
     uint8_t sleep_timeout_minutes;                      // M255 S
   #endif
@@ -640,7 +640,7 @@ void MarlinSettings::postprocess() {
   TERN_(HAS_LCD_CONTRAST, ui.refresh_contrast());
   TERN_(HAS_LCD_BRIGHTNESS, ui.refresh_brightness());
 
-  #if LCD_BACKLIGHT_TIMEOUT
+  #if LCD_BACKLIGHT_TIMEOUT_MINS
     ui.refresh_backlight_timeout();
   #elif HAS_DISPLAY_SLEEP
     ui.refresh_screen_timeout();
@@ -1157,8 +1157,8 @@ void MarlinSettings::postprocess() {
     //
     // LCD Backlight / Sleep Timeout
     //
-    #if LCD_BACKLIGHT_TIMEOUT
-      EEPROM_WRITE(ui.lcd_backlight_timeout);
+    #if LCD_BACKLIGHT_TIMEOUT_MINS
+      EEPROM_WRITE(ui.backlight_timeout_minutes);
     #elif HAS_DISPLAY_SLEEP
       EEPROM_WRITE(ui.sleep_timeout_minutes);
     #endif
@@ -2108,8 +2108,8 @@ void MarlinSettings::postprocess() {
       //
       // LCD Backlight / Sleep Timeout
       //
-      #if LCD_BACKLIGHT_TIMEOUT
-        EEPROM_READ(ui.lcd_backlight_timeout);
+      #if LCD_BACKLIGHT_TIMEOUT_MINS
+        EEPROM_READ(ui.backlight_timeout_minutes);
       #elif HAS_DISPLAY_SLEEP
         EEPROM_READ(ui.sleep_timeout_minutes);
       #endif
@@ -3198,8 +3198,8 @@ void MarlinSettings::reset() {
   //
   // LCD Backlight / Sleep Timeout
   //
-  #if LCD_BACKLIGHT_TIMEOUT
-    ui.lcd_backlight_timeout = LCD_BACKLIGHT_TIMEOUT;
+  #if LCD_BACKLIGHT_TIMEOUT_MINS
+    ui.backlight_timeout_minutes = LCD_BACKLIGHT_TIMEOUT_MINS;
   #elif HAS_DISPLAY_SLEEP
     ui.sleep_timeout_minutes = DISPLAY_SLEEP_MINUTES;
   #endif

buildroot/tests/mega2560

@@ -213,7 +213,7 @@ opt_set MOTHERBOARD BOARD_RAMPS_14_EFB EXTRUDERS 1 \
         TEMP_SENSOR_0 -2 TEMP_SENSOR_REDUNDANT -2 \
         TEMP_SENSOR_REDUNDANT_SOURCE E1 TEMP_SENSOR_REDUNDANT_TARGET E0 \
         TEMP_0_CS_PIN 11 TEMP_1_CS_PIN 12 \
-        LCD_BACKLIGHT_TIMEOUT 30
+        LCD_BACKLIGHT_TIMEOUT_MINS 2
 opt_enable MPCTEMP MINIPANEL
 opt_disable PIDTEMP
 exec_test $1 $2 "MEGA2560 RAMPS | Redundant temperature sensor | 2x MAX6675 | BL Timeout" "$3"