From 52b0b5e5b82a4d18a43a2862099f921aa4efc685 Mon Sep 17 00:00:00 2001
From: seebye <seebye@users.noreply.github.com>
Date: Fri, 20 Dec 2019 19:33:59 +0100
Subject: [PATCH] Fix race condition between creating a window and drawing on
 it

Reason:
Xshm is used to draw on windows (via original Xlib / c extension).
So there are at least two connections to the X11 server.
-> Race condition between drawing on windows (Xlib)
   and creating them (python-Xlib)
---
 ueberzug/ui.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ueberzug/ui.py b/ueberzug/ui.py
index fa74fa8..da8f3a5 100644
--- a/ueberzug/ui.py
+++ b/ueberzug/ui.py
@@ -231,7 +231,7 @@ class OverlayWindow:
             event_mask=X.StructureNotifyMask)
         self._set_click_through()
         self._set_invisible()
-        self._display.flush()
+        self._display.sync()
 
     def reset_terminal_info(self):
         """Resets the terminal information of this window."""