From c18403302df3f07a7f94c3984d65b808fb40e8c1 Mon Sep 17 00:00:00 2001
From: Martin Rudalics <rudalics@gmx.at>
Date: Sat, 15 May 2021 09:20:50 +0200
Subject: [PATCH] Have X builds handle VisibilityNotify events (Bug#48268,
 Bug#48413)

* src/xterm.c (handle_one_xevent): Handle VisibilityNotify
events (Bug#48268, Bug#48413).
---
 src/xterm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/xterm.c b/src/xterm.c
index bdf0804f895..1887c3255d4 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -9343,6 +9343,11 @@ handle_one_xevent (struct x_display_info *dpyinfo,
       goto OTHER;
 
     case VisibilityNotify:
+      f = x_top_window_to_frame (dpyinfo, event->xvisibility.window);
+      if (f && (event->xvisibility.state == VisibilityUnobscured
+		|| event->xvisibility.state == VisibilityPartiallyObscured))
+	SET_FRAME_VISIBLE (f, 1);
+
       goto OTHER;
 
     case MappingNotify:
-- 
2.39.5