From 7390cc231757b2aa53b7d9292e3e335e061329f3 Mon Sep 17 00:00:00 2001
From: elral <3263285+elral@users.noreply.github.com>
Date: Mon, 21 Oct 2024 20:25:05 +0200
Subject: [PATCH 1/2] Turning the display on/off in case of power saving mode

---
 src/MF_LCDDisplay/MFLCDDisplay.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/MF_LCDDisplay/MFLCDDisplay.cpp b/src/MF_LCDDisplay/MFLCDDisplay.cpp
index 2c34601a..1e45531c 100644
--- a/src/MF_LCDDisplay/MFLCDDisplay.cpp
+++ b/src/MF_LCDDisplay/MFLCDDisplay.cpp
@@ -42,10 +42,14 @@ void MFLCDDisplay::detach()
 
 void MFLCDDisplay::powerSavingMode(bool state)
 {
-    if (state)
+    if (state) {
         _lcdDisplay.noBacklight();
-    else
+        _lcdDisplay.noDisplay();
+    }
+    else {
         _lcdDisplay.backlight();
+        _lcdDisplay.display();
+    }
 }
 
 void MFLCDDisplay::test()

From 63437e4b00d033df58caacb8cc7120155098c14f Mon Sep 17 00:00:00 2001
From: elral <3263285+elral@users.noreply.github.com>
Date: Wed, 23 Oct 2024 16:24:56 +0200
Subject: [PATCH 2/2] add missing functions for LCD power saving mode

---
 src/MF_LCDDisplay/LCDDisplay.cpp | 7 +++++++
 src/MF_LCDDisplay/LCDDisplay.h   | 1 +
 src/mobiflight.cpp               | 6 ++++++
 3 files changed, 14 insertions(+)

diff --git a/src/MF_LCDDisplay/LCDDisplay.cpp b/src/MF_LCDDisplay/LCDDisplay.cpp
index cae89c71..e1601625 100644
--- a/src/MF_LCDDisplay/LCDDisplay.cpp
+++ b/src/MF_LCDDisplay/LCDDisplay.cpp
@@ -53,6 +53,13 @@ namespace LCDDisplay
         cmdMessenger.unescape(output);
         lcd_I2C[address].display(output);
     }
+
+    void PowerSave(bool state)
+    {
+        for (uint8_t i = 0; i < lcd_12cRegistered; ++i) {
+            lcd_I2C[i].powerSavingMode(state);
+        }
+    }
 } // namespace
 
 // LCDDisplay.cpp
diff --git a/src/MF_LCDDisplay/LCDDisplay.h b/src/MF_LCDDisplay/LCDDisplay.h
index 12bcf2db..6d8ba5e9 100644
--- a/src/MF_LCDDisplay/LCDDisplay.h
+++ b/src/MF_LCDDisplay/LCDDisplay.h
@@ -13,6 +13,7 @@ namespace LCDDisplay
     void Add(uint8_t address = 0x24, uint8_t cols = 16, uint8_t lines = 2);
     void Clear();
     void OnSet();
+    void PowerSave(bool state);
 }
 
 // LCDDisplay.h
diff --git a/src/mobiflight.cpp b/src/mobiflight.cpp
index 2d0a9b3d..33fc8f76 100644
--- a/src/mobiflight.cpp
+++ b/src/mobiflight.cpp
@@ -25,6 +25,9 @@
 #if MF_SERVO_SUPPORT == 1
 #include "Servos.h"
 #endif
+#if MF_LCD_SUPPORT == 1
+#include "LCDDisplay.h"
+#endif
 #if MF_OUTPUT_SHIFTER_SUPPORT == 1
 #include "OutputShifter.h"
 #endif
@@ -126,6 +129,9 @@ void SetPowerSavingMode(bool state)
 #if MF_OUTPUT_SHIFTER_SUPPORT == 1
     OutputShifter::PowerSave(state);
 #endif
+#if MF_LCD_SUPPORT == 1
+    LCDDisplay::PowerSave(state);
+#endif
 
 #ifdef DEBUG2CMDMESSENGER
     if (state)