From 4d9484af5768c0c8103faaf92d9d5a2c83a46f4e Mon Sep 17 00:00:00 2001
From: jpirnay <jens@pirnay.com>
Date: Wed, 8 Apr 2026 12:10:52 +0200
Subject: [PATCH] Add mutex to SleepActivity

---
 src/activities/boot_sleep/SleepActivity.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/activities/boot_sleep/SleepActivity.cpp b/src/activities/boot_sleep/SleepActivity.cpp
index 38ebc3d2..8a473fd3 100644
--- a/src/activities/boot_sleep/SleepActivity.cpp
+++ b/src/activities/boot_sleep/SleepActivity.cpp
@@ -350,6 +350,7 @@ size_t pickSleepImageIndex(size_t numFiles) {
 
 void SleepActivity::onEnter() {
   Activity::onEnter();
+  RenderLock lock(*this);
   // For OVERLAY mode the popup is suppressed so the frame buffer (reader page) stays intact
   if (SETTINGS.sleepScreen != CrossPointSettings::SLEEP_SCREEN_MODE::OVERLAY) {
     GUI.drawPopup(renderer, tr(STR_ENTERING_SLEEP));