diff --git a/src/Core/PS4/HLE/Graphics/Objects/video_out_ctx.h b/src/Core/PS4/HLE/Graphics/Objects/video_out_ctx.h
index 1017fbc0..8adf22ef 100644
--- a/src/Core/PS4/HLE/Graphics/Objects/video_out_ctx.h
+++ b/src/Core/PS4/HLE/Graphics/Objects/video_out_ctx.h
@@ -16,6 +16,8 @@ struct VideoConfigInternal {
     SceVideoOutVblankStatus m_vblank_status;
     std::vector<HLE::Libs::LibKernel::EventQueues::SceKernelEqueue> m_flip_evtEq;
     int m_flip_rate = 0;
+
+    int buffers_registration_index = 0;
 };
 
 class FlipQueue {
diff --git a/src/Core/PS4/HLE/Graphics/video_out.cpp b/src/Core/PS4/HLE/Graphics/video_out.cpp
index 56d006ee..6074bff0 100644
--- a/src/Core/PS4/HLE/Graphics/video_out.cpp
+++ b/src/Core/PS4/HLE/Graphics/video_out.cpp
@@ -12,6 +12,7 @@
 
 #include "Objects/video_out_ctx.h"
 #include "Util/Singleton.h"
+#include <emulator.h>
 
 namespace HLE::Libs::Graphics::VideoOut {
 
@@ -155,7 +156,16 @@ s32 PS4_SYSV_ABI sceVideoOutRegisterBuffers(s32 handle, s32 startIndex, void* co
     LOG_INFO_IF(log_file_videoout, "height        = {}\n", attribute->height);
     LOG_INFO_IF(log_file_videoout, "pitchInPixel  = {}\n", attribute->pitchInPixel);
     LOG_INFO_IF(log_file_videoout, "option        = {}\n", attribute->option);
-    return 0;
+
+    int registration_index = ctx->buffers_registration_index++;
+
+    Emulator::checkAndWaitForGraphicsInit();
+
+    //try to calculate buffer size
+    u64 buffer_size = 1280 * 720 * 4; //TODO hardcore value should be redone
+    u64 buffer_pitch = attribute->pitchInPixel;
+
+    return registration_index;
 }
 s32 PS4_SYSV_ABI sceVideoOutSetFlipRate(s32 handle, s32 rate) {
     PRINT_FUNCTION_NAME();
diff --git a/src/emulator.cpp b/src/emulator.cpp
index 0fa5ca5d..98c3dae0 100644
--- a/src/emulator.cpp
+++ b/src/emulator.cpp
@@ -14,6 +14,13 @@ void emuInit(u32 width, u32 height) {
     g_window_ctx->m_graphic_ctx.screen_height = height;
 }
 
+void checkAndWaitForGraphicsInit() {
+    Lib::LockMutexGuard lock(g_window_ctx->m_mutex);
+
+    while (!g_window_ctx->m_is_graphic_initialized) {
+        g_window_ctx->m_graphic_initialized_cond.WaitCondVar(&g_window_ctx->m_mutex);
+    }
+}
 static void CreateSdlWindow(WindowCtx* ctx) {
     int width = static_cast<int>(ctx->m_graphic_ctx.screen_width);
     int height = static_cast<int>(ctx->m_graphic_ctx.screen_height);
@@ -34,7 +41,6 @@ static void CreateSdlWindow(WindowCtx* ctx) {
     }
 
     SDL_SetWindowResizable(ctx->m_window, SDL_FALSE);  // we don't support resizable atm
-    SDL_ShowWindow(g_window_ctx->m_window);            // TODO should be removed just left it over to make it fancy :D
 }
 void emuRun() {
     g_window_ctx->m_mutex.LockMutex();
diff --git a/src/emulator.h b/src/emulator.h
index d86b1ef6..975b5330 100644
--- a/src/emulator.h
+++ b/src/emulator.h
@@ -24,4 +24,5 @@ struct EmuPrivate {
 };
 void emuInit(u32 width, u32 height);
 void emuRun();
+void checkAndWaitForGraphicsInit();
 }  // namespace Emulator
\ No newline at end of file