SDL: x11: Fix backwards _NET_WM_SYNC_REQUEST init check

SDL Commits
1 
From b493e29a81925d8ac567431af42fd1a0bb1f0960 Mon Sep 17 00:00:00 2001
From: Frank Praznik <[EMAIL REDACTED]>
Date: Fri, 21 Mar 2025 15:32:54 -0400
Subject: [PATCH] x11: Fix backwards _NET_WM_SYNC_REQUEST init check

---
 src/video/x11/SDL_x11window.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c
index b33295d5ac77c..62f8661030282 100644
--- a/src/video/x11/SDL_x11window.c
+++ b/src/video/x11/SDL_x11window.c
@@ -534,7 +534,7 @@ bool X11_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_Properties
     }
 
     const bool force_override_redirect = SDL_GetHintBoolean(SDL_HINT_X11_FORCE_OVERRIDE_REDIRECT, false);
-    const bool use_resize_sync = (window->flags & SDL_WINDOW_VULKAN); /* doesn't work well with Vulkan */
+    const bool use_resize_sync = !(window->flags & SDL_WINDOW_VULKAN); /* doesn't work well with Vulkan */
     SDL_WindowData *windowdata;
     Display *display = data->display;
     int screen = displaydata->screen;