From e1fff05d0db9c266679ec7ea1b5734c73d6b0a57 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Sat, 26 Jul 2025 11:46:00 +0200
Subject: [PATCH] layerSurface: check for monitor validity in startAnimation

ref #11168

sometimes on exit monitor might be null
---
 src/desktop/LayerSurface.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/desktop/LayerSurface.cpp b/src/desktop/LayerSurface.cpp
index 36ec030b..0faa47d2 100644
--- a/src/desktop/LayerSurface.cpp
+++ b/src/desktop/LayerSurface.cpp
@@ -470,9 +470,14 @@ void CLayerSurface::startAnimation(bool in, bool instant) {
 
         const auto PMONITOR = g_pCompositor->getMonitorFromVector(MIDDLE);
 
-        int        force = -1;
+        if (!PMONITOR) { // can rarely happen on exit
+            m_alpha->setValueAndWarp(in ? 1.F : 0.F);
+            return;
+        }
 
-        CVarList   args(ANIMSTYLE, 0, 's');
+        int      force = -1;
+
+        CVarList args(ANIMSTYLE, 0, 's');
         if (args.size() > 1) {
             const auto ARG2 = args[1];
             if (ARG2 == "top")