diff --git a/include/boo/DeferredWindowEvents.hpp b/include/boo/DeferredWindowEvents.hpp
index 289840f..b076d18 100644
--- a/include/boo/DeferredWindowEvents.hpp
+++ b/include/boo/DeferredWindowEvents.hpp
@@ -24,12 +24,13 @@ struct DeferredWindowEvents : public IWindowCallback
 
     bool m_hasResize = false;
     SWindowRect m_latestResize;
-    void resized(const SWindowRect& rect)
+    void resized(const SWindowRect& rect, bool sync)
     {
         std::unique_lock<std::mutex> lk(m_mt);
         m_latestResize = rect;
         m_hasResize = true;
-        m_resizeCv.wait_for(lk, std::chrono::milliseconds(500));
+        if (sync)
+            m_resizeCv.wait_for(lk, std::chrono::milliseconds(500));
     }
 
     struct Command
diff --git a/include/boo/IWindow.hpp b/include/boo/IWindow.hpp
index 3403504..9ac5e8b 100644
--- a/include/boo/IWindow.hpp
+++ b/include/boo/IWindow.hpp
@@ -173,7 +173,7 @@ struct ITextInputCallback
 class IWindowCallback
 {
 public:
-    virtual void resized(const SWindowRect& rect)
+    virtual void resized(const SWindowRect& rect, bool sync)
     {(void)rect;}
     virtual void mouseDown(const SWindowCoord& coord, EMouseButton button, EModifierKey mods)
     {(void)coord;(void)button;(void)mods;}
diff --git a/lib/mac/WindowCocoa.mm b/lib/mac/WindowCocoa.mm
index 1230c61..a4671bc 100644
--- a/lib/mac/WindowCocoa.mm
+++ b/lib/mac/WindowCocoa.mm
@@ -8,8 +8,7 @@
 #include "boo/IWindow.hpp"
 #include "boo/IGraphicsContext.hpp"
 #include "boo/audiodev/IAudioVoiceEngine.hpp"
-
-#include <LogVisor/LogVisor.hpp>
+#include "logvisor/logvisor.hpp"
 
 #if !__has_feature(objc_arc)
 #error ARC Required
@@ -1146,7 +1145,7 @@ static boo::ESpecialKey translateKeycode(short code)
     boo::SWindowRect rect = {int(frame.origin.x), int(frame.origin.y),
                              int(frame.size.width), int(frame.size.height)};
     if (resp->booContext->m_callback)
-        resp->booContext->m_callback->resized(rect);
+        resp->booContext->m_callback->resized(rect, true);
     [super reshape];
 }
 
@@ -1224,7 +1223,7 @@ static boo::ESpecialKey translateKeycode(short code)
     boo::MetalContext::Window& w = m_ctx->m_windows[m_window];
     std::unique_lock<std::mutex> lk(w.m_resizeLock);
     if (resp->booContext->m_callback)
-        resp->booContext->m_callback->resized(rect);
+        resp->booContext->m_callback->resized(rect, false);
     w.m_size = CGSizeMake(rect.size[0], rect.size[1]);
     w.m_needsResize = YES;
 }
diff --git a/lib/win/WindowWin32.cpp b/lib/win/WindowWin32.cpp
index 4868399..c561133 100644
--- a/lib/win/WindowWin32.cpp
+++ b/lib/win/WindowWin32.cpp
@@ -934,6 +934,7 @@ class WindowWin32 : public IWindow
     IWindowCallback* m_callback = nullptr;
     EMouseCursor m_cursor = EMouseCursor::None;
     bool m_cursorWait = false;
+    bool m_openGL = false;
     static HCURSOR GetWin32Cursor(EMouseCursor cur)
     {
         switch (cur)
@@ -971,6 +972,7 @@ public:
         {
             m_gfxCtx.reset(new GraphicsContextWin32GL(IGraphicsContext::EGraphicsAPI::OpenGL3_3,
                                                       this, m_hwnd, b3dCtx, sampleCount));
+            m_openGL = true;
             return;
         }
 #if BOO_HAS_VULKAN
@@ -1289,7 +1291,7 @@ public:
                 return;
             m_gfxCtx->m_3dCtx.resize(this, rect.size[0], rect.size[1]);
             if (m_callback)
-                m_callback->resized(rect);
+                m_callback->resized(rect, m_openGL);
             return;
         }
         case WM_MOVING:
diff --git a/lib/x11/WindowXlib.cpp b/lib/x11/WindowXlib.cpp
index 38c03c8..38c098c 100644
--- a/lib/x11/WindowXlib.cpp
+++ b/lib/x11/WindowXlib.cpp
@@ -911,6 +911,8 @@ class WindowXlib : public IWindow
         return X_CURSORS.m_pointer;
     }
 
+    bool m_openGL = false;
+
 public:
     WindowXlib(const std::string& title,
                Display* display, void* xcbConn,
@@ -936,6 +938,7 @@ public:
                 i = 0;
                 m_gfxCtx.reset(new GraphicsContextXlibGLX(IGraphicsContext::EGraphicsAPI::OpenGL3_3,
                                                           this, display, defaultScreen, lastCtx, m_visualId, drawSamples));
+                m_openGL = true;
             }
 
             /* Default screen */
@@ -1601,7 +1604,7 @@ public:
             {
                 XUnlockDisplay(m_xDisp);
                 m_gfxCtx->resized(m_wrect);
-                m_callback->resized(m_wrect);
+                m_callback->resized(m_wrect, m_openGL);
                 XLockDisplay(m_xDisp);
             }
             return;