From 529c78ef903eb5f7da6d9b470540c518aa3826f2 Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Mon, 12 Oct 2020 18:59:21 +0800
Subject: [PATCH] tune

---
 src/kernel/compsor-fallback.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/kernel/compsor-fallback.c b/src/kernel/compsor-fallback.c
index 6914e10f..da22d5a1 100644
--- a/src/kernel/compsor-fallback.c
+++ b/src/kernel/compsor-fallback.c
@@ -902,6 +902,7 @@ static void on_changed_rgn (CompositorCtxt* ctxt, MG_Layer* layer,
     assert (znode_hdr);
 
     if (!(znode_hdr->flags & ZNIF_VISIBLE)) {
+        _DBG_PRINTF("not a visible window\n");
         return;
     }