From 3c71e9b96fcc53e50180c806acbecbbcf4c77d0c Mon Sep 17 00:00:00 2001
From: Malcolm Still <malcolm.still@gmail.com>
Date: Wed, 11 Jan 2017 21:30:33 +0000
Subject: [PATCH] Moving the LockSurface after waiting for the page flip stops
 the rendering glitches on Linux/KMS.

---
 src/OpenTK/Platform/Linux/LinuxGraphicsContext.cs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/OpenTK/Platform/Linux/LinuxGraphicsContext.cs b/src/OpenTK/Platform/Linux/LinuxGraphicsContext.cs
index d6959544..779fd36d 100644
--- a/src/OpenTK/Platform/Linux/LinuxGraphicsContext.cs
+++ b/src/OpenTK/Platform/Linux/LinuxGraphicsContext.cs
@@ -67,9 +67,6 @@ namespace OpenTK.Platform.Linux
         {
             base.SwapBuffers();
 
-            bo_next = LockSurface();
-            int fb = GetFramebuffer(bo_next);
-
             if (is_flip_queued)
             {
                 // Todo: if we don't wait for the page flip,
@@ -84,6 +81,8 @@ namespace OpenTK.Platform.Linux
                 }
             }
 
+            bo_next = LockSurface();
+            int fb = GetFramebuffer(bo_next);
             QueueFlip(fb);
         }