diff --git a/source/common/screen.cpp b/source/common/screen.cpp
index 6b6f598..aefac84 100644
--- a/source/common/screen.cpp
+++ b/source/common/screen.cpp
@@ -43,6 +43,10 @@ Screen::Screen(SDL_Window *window, SDL_Renderer *renderer, Asset *asset, Input *
 #else
     showFps = false;
 #endif
+    SDL_DisplayMode DM;
+    SDL_GetCurrentDisplayMode(0, &DM);
+    displayWidth = DM.w;
+    displayHeight = DM.h;
 
     // Crea los objetos
     notify = new Notify(renderer, asset->get("notify.png"), asset->get("8bithud.png"), asset->get("8bithud.txt"), asset->get("notify.wav"), options);
@@ -103,9 +107,7 @@ void Screen::blit()
         dbg_print(0, 0, fpstext.c_str(), 255, 255, 255);
 
         // Resolution
-        SDL_DisplayMode DM;
-        SDL_GetCurrentDisplayMode(0, &DM);
-        const std::string resolution = std::to_string(DM.w) + " X " + std::to_string(DM.h);
+        const std::string resolution = std::to_string(displayWidth) + " X " + std::to_string(displayHeight);
         dbg_print(0, 8, resolution.c_str(), 255, 255, 255);
     }
 
diff --git a/source/common/screen.h b/source/common/screen.h
index 09e7b26..9ea436e 100644
--- a/source/common/screen.h
+++ b/source/common/screen.h
@@ -38,6 +38,8 @@ private:
 	int fpsCounter;		  // Contador de frames por segundo
 	int fps;			  // Frames calculados en el último segundo
 	bool showFps;		  // Indica si ha de mostrar/ocultar la información de los frames por segundo en pantalla
+	int displayWidth;	  // Anchura de la pantalla
+	int displayHeight;	  // Altura de la pantalla
 
 	struct effect_t
 	{