Index: src/video/sdl_v.cpp
===================================================================
--- src/video/sdl_v.cpp	(revision 18031)
+++ src/video/sdl_v.cpp	(working copy)
@@ -41,6 +41,34 @@
 /** Should we keep continue drawing? */
 static volatile bool _draw_continue;
 
+static class ResizeRequest {
+private:
+	bool resizing;
+	int width, height;
+public:
+	void RequestResize(int width, int height)
+	{
+		this->width = width;
+		this->height = height;
+		this->resizing = true;
+	}
+
+	void UpdateSize()
+	{
+		if (this->resizing) {
+			ChangeResInGame(this->width, this->height);
+		}
+	}
+
+	void FinishResize()
+	{
+		if (this->resizing) {
+			_video_driver->ChangeResolution(this->width, this->height);
+		}
+		this->resizing = false;
+	}
+} _resize_request;
+
 #define MAX_DIRTY_RECTS 100
 static SDL_Rect _dirty_rects[MAX_DIRTY_RECTS];
 static int _num_dirty_rects;
@@ -437,6 +465,7 @@
 			break;
 
 		case SDL_ACTIVEEVENT:
+			_resize_request.FinishResize();
 			if (!(ev.active.state & SDL_APPMOUSEFOCUS)) break;
 
 			if (ev.active.gain) { // mouse entered the window, enable cursor
@@ -463,7 +492,7 @@
 		case SDL_VIDEORESIZE: {
 			int w = max(ev.resize.w, 64);
 			int h = max(ev.resize.h, 64);
-			ChangeResInGame(w, h);
+			_resize_request.RequestResize(w, h);
 			break;
 		}
 	}
@@ -539,6 +568,8 @@
 		while (PollEvent() == -1) {}
 		if (_exit_game) break;
 
+		_resize_request.UpdateSize();
+
 		mod = SDL_CALL SDL_GetModState();
 		keys = SDL_CALL SDL_GetKeyState(&numkeys);
 #if defined(_DEBUG)