From ed07a9abc67d5bf95e80c8dc8e589413668f802b Mon Sep 17 00:00:00 2001
From: Edward Raleigh <edward.j.raleigh@intel.com>
Date: Fri, 12 Nov 2021 16:13:22 -0800
Subject: [PATCH] added fix in case CheckPresentDurationSupport fails to set
 m_minDuration

---
 Game.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Game.cpp b/Game.cpp
index 80f0cfd..73c8e67 100644
--- a/Game.cpp
+++ b/Game.cpp
@@ -1839,6 +1839,9 @@ void Game::UpdateDxgiRefreshRatesInfo()
 		&closestLargerPresentDuration));
 	m_minDuration = closestLargerPresentDuration;
 
+	if (m_minDuration == 0 && m_displayFrequency != 0) // if CheckPresentDurationSupport fails to set m_minDuration, try to set with m_displayFrequency instead
+		m_minDuration = (10000000)/m_displayFrequency;
+		
 	// this may need to be adjusted based on the VESA criteria.  TODO
 	if (m_minDuration > 0 && m_maxDuration > 0)  // if Durations are supported,
 	{