From c5eb57eb197c8d846174ddc00aa6c97056d6c2d0 Mon Sep 17 00:00:00 2001
From: Don Bright <hugh.m.bright@gmail.com>
Date: Sun, 17 Feb 2013 04:18:42 +0100
Subject: more info when Xvnc/Xvfb cannot start


diff --git a/tests/virtualfb.sh b/tests/virtualfb.sh
index 06d37bf..186b389 100755
--- a/tests/virtualfb.sh
+++ b/tests/virtualfb.sh
@@ -7,6 +7,8 @@ debug=
 
 start()
 {
+  VFB_BINARY=
+
   if [ "`command -v Xvfb`" ]; then
     VFB_BINARY=Xvfb
   fi
@@ -17,6 +19,7 @@ start()
 
   if [ ! $VFB_BINARY ]; then
     echo "$0 Failed, cannot find Xvfb or Xvnc"
+    echo "$0 Failed, cannot find Xvfb or Xvnc" > ./virtualfb.log
     exit 1
   fi
 
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