From 34ede1f09adfa4e6cd7a7c5c4d93cd346c1b5f2f Mon Sep 17 00:00:00 2001
From: Stefan Koelle <stefan.koelle@gmail.com>
Date: Sun, 2 Aug 2026 13:48:29 +0200
Subject: [PATCH] fix auto return to home

---
 src/main.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index c0dde59..9edd75f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -76,8 +76,11 @@ void loop() {
         screens[(int)current].tick();
 
         // Inactivity: return to home after 5 minutes without input.
+        // Use millis() directly — lastInteractionMs may have been updated
+        // during display_loop() inside this same iteration; using the stale
+        // `now` from loop start would underflow and trigger immediately.
         if (current != ScreenId::HOME &&
-            now - lastInteractionMs >= IDLE_TIMEOUT_MS) {
+            millis() - lastInteractionMs >= IDLE_TIMEOUT_MS) {
             navigate(ScreenId::HOME);
         }
     }