From 6b6536c1f074ce5dd4805c998f3ea754d18d1830 Mon Sep 17 00:00:00 2001
From: MrSoichi <21004580+MrSoichi@users.noreply.github.com>
Date: Wed, 26 Aug 2026 19:40:17 +0600
Subject: [PATCH 1/2] Restore display orientation after Windows resume

---
 library/display.py            | 10 ++++++----
 library/lcd/lcd_comm_rev_a.py |  4 +++-
 main.py                       |  7 +++++++
 3 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/library/display.py b/library/display.py
index dabbca52c..9a7352af0 100644
--- a/library/display.py
+++ b/library/display.py
@@ -126,12 +126,9 @@ def initialize_display(self):
         # Send initialization commands
         self.lcd.InitializeComm()
 
-        # Turn on display, set brightness and LEDs for supported HW
+        # Turn on display, set brightness, LEDs and orientation for supported HW
         self.turn_on()
 
-        # Set orientation
-        self.lcd.SetOrientation(_get_theme_orientation())
-
     def turn_on(self):
         # Turn screen on in case it was turned off previously
         self.lcd.ScreenOn()
@@ -142,6 +139,11 @@ def turn_on(self):
         # Set backplate RGB LED color (for supported HW only)
         self.lcd.SetBackplateLedColor(config.THEME_DATA['display'].get("DISPLAY_RGB_LED", (255, 255, 255)))
 
+        # The LCD controller may lose its configured orientation during sleep/hibernate.
+        orientation = _get_theme_orientation()
+        logger.info("Restoring display orientation: %s" % orientation.name)
+        self.lcd.SetOrientation(orientation)
+
     def turn_off(self):
         # Turn screen off
         self.lcd.ScreenOff()
diff --git a/library/lcd/lcd_comm_rev_a.py b/library/lcd/lcd_comm_rev_a.py
index 520b83641..7e96ec52a 100644
--- a/library/lcd/lcd_comm_rev_a.py
+++ b/library/lcd/lcd_comm_rev_a.py
@@ -173,7 +173,9 @@ def SetOrientation(self, orientation: Orientation = Orientation.PORTRAIT):
         byteBuffer[8] = (width & 255)
         byteBuffer[9] = (height >> 8)
         byteBuffer[10] = (height & 255)
-        self.serial_write(bytes(byteBuffer))
+        # Serialize orientation with the other display commands. A direct write can race
+        # the queue worker when Windows resumes and scheduled sensor redraws start again.
+        self.SendLine(bytes(byteBuffer))
 
     def DisplayPILImage(
             self,
diff --git a/main.py b/main.py
index dad5251f6..9c2746586 100755
--- a/main.py
+++ b/main.py
@@ -161,10 +161,17 @@ def on_win32_wm_event(hWnd, msg, wParam, lParam):
                     display.turn_off()
                 elif wParam == win32con.PBT_APMRESUMEAUTOMATIC:
                     logger.info("Computer is resuming from sleep, display will turn on")
+                    # Windows may resume the process before the USB/serial endpoint is fully
+                    # ready. Also allow queued pre-suspend writes to finish before restoring
+                    # display state and redrawing the theme.
+                    logger.info("Waiting 1.0s for USB display to settle after resume")
+                    time.sleep(1.0)
+                    wait_for_empty_queue(2)
                     display.turn_on()
                     # Some models have troubles displaying back the previous bitmap after being turned off/on
                     display.display_static_images()
                     display.display_static_text()
+                    logger.info("Resume redraw queued")
             else:
                 # For any other events, the program will stop
                 logger.info("Program will now exit")

From d2a880539a675ebd20e772ff4dab7ace4e5a5708 Mon Sep 17 00:00:00 2001
From: MrSoichi <21004580+MrSoichi@users.noreply.github.com>
Date: Fri, 28 Aug 2026 23:57:11 +0600
Subject: [PATCH 2/2] Remove resume-specific orientation log

---
 library/display.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/library/display.py b/library/display.py
index 9a7352af0..e14846063 100644
--- a/library/display.py
+++ b/library/display.py
@@ -139,9 +139,7 @@ def turn_on(self):
         # Set backplate RGB LED color (for supported HW only)
         self.lcd.SetBackplateLedColor(config.THEME_DATA['display'].get("DISPLAY_RGB_LED", (255, 255, 255)))
 
-        # The LCD controller may lose its configured orientation during sleep/hibernate.
         orientation = _get_theme_orientation()
-        logger.info("Restoring display orientation: %s" % orientation.name)
         self.lcd.SetOrientation(orientation)
 
     def turn_off(self):