Fix window size in X11 when window manager refuses to resize

(cherry picked from commit a67ae8eed57f4545c739e6eb3a4b8c1169d3afbc)

src/video/x11/SDL_x11window.c

@@ -418,7 +418,7 @@ int X11_CreateWindow(_THIS, SDL_Window *window)
 #if SDL_VIDEO_OPENGL_EGL
         if (((_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) ||
              SDL_GetHintBoolean(SDL_HINT_VIDEO_X11_FORCE_EGL, SDL_FALSE))
-#if SDL_VIDEO_OPENGL_GLX            
+#if SDL_VIDEO_OPENGL_GLX
             && ( !_this->gl_data || X11_GL_UseEGL(_this) )
 #endif
         ) {
@@ -641,9 +641,9 @@ int X11_CreateWindow(_THIS, SDL_Window *window)
     if ((window->flags & SDL_WINDOW_OPENGL) &&
         ((_this->gl_config.profile_mask == SDL_GL_CONTEXT_PROFILE_ES) ||
          SDL_GetHintBoolean(SDL_HINT_VIDEO_X11_FORCE_EGL, SDL_FALSE))
-#if SDL_VIDEO_OPENGL_GLX            
+#if SDL_VIDEO_OPENGL_GLX
         && ( !_this->gl_data || X11_GL_UseEGL(_this) )
-#endif  
+#endif
     ) {
 #if SDL_VIDEO_OPENGL_EGL
         if (!_this->egl_data) {
@@ -979,6 +979,10 @@ void X11_SetWindowSize(_THIS, SDL_Window *window)
         }
 
         if (SDL_TICKS_PASSED(SDL_GetTicks(), timeout)) {
+            /* Timeout occurred and window size didn't change
+             * wwindow manager likely denied the resize. */
+            window->w = orig_w;
+            window->h = orig_h;
             break;
         }