[client] display: stop callbacks before state teardown

client/displayservers/X11/x11.c

@@ -967,13 +967,19 @@ static void x11Startup(void)
 
 static void x11Shutdown(void)
 {
-  if (x11.jitRender)
+  if (x11.frameEvent)
     x11SignalFrame(LG_DS_WAIT_FRAME_INTERRUPTED);
+
+  if (x11.eventThread)
+  {
+    lgJoinThread(x11.eventThread, NULL);
+    x11.eventThread = NULL;
+  }
 }
 
 static void x11Free(void)
 {
-  lgJoinThread(x11.eventThread, NULL);
+  x11Shutdown();
 
   if (x11.jitRender)
   {

client/include/interface/displayserver.h

@@ -149,10 +149,10 @@ struct LG_DisplayServerOps
   /* called after window creation, renderer, and input providers are ready */
   void (*startup)(void);
 
-  /* called just before final window destruction, before final free */
+  /* stop all callbacks before application subsystems are destroyed */
   void (*shutdown)(void);
 
-  /* final free */
+  /* final resource destruction after shutdown */
   void (*free)(void);
 
   /*

client/src/main.c

@@ -3483,6 +3483,11 @@ static void lg_shutdown(void)
     lgJoinThread(t_render, NULL);
   }
 
+  // Stop external input callbacks before tearing down shared client state
+  evdev_stop();
+  if (g_state.ds && g_state.dsInitialized)
+    g_state.ds->shutdown();
+
   fallbackStop();
 
   if (t_cursorRepaint)
@@ -3498,9 +3503,6 @@ static void lg_shutdown(void)
   }
   LG_LOCK_FREE(l_cursorRepaint.lock);
 
-  // An evdev batch may call input handlers; join before input teardown
-  evdev_stop();
-
   if (g_state.transport.ops)
   {
     lgInput_dropTransport();
@@ -3534,9 +3536,6 @@ static void lg_shutdown(void)
     e_startup = NULL;
   }
 
-  if (g_state.ds)
-    g_state.ds->shutdown();
-
   lgClipboard_free();
 
   app_releaseAllKeybinds();