--- ./nx-X11/lib/X11/OpenDis.c.X.original	2015-02-13 14:03:44.620443950 +0100
+++ ./nx-X11/lib/X11/OpenDis.c	2015-02-10 19:13:12.748725444 +0100
@@ -24,6 +24,24 @@
 in this Software without prior written authorization from The Open Group.
 
 */
+
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NX-X11, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
 /* $XFree86: xc/lib/X11/OpenDis.c,v 3.16 2003/07/04 16:24:23 eich Exp $ */
 
 #define NEED_REPLIES
@@ -43,6 +61,10 @@
 #include "XKBlib.h"
 #endif /* XKB */
 
+#ifdef NX_TRANS_SOCKET
+extern void *_X11TransSocketProxyConnInfo(XtransConnInfo);
+#endif
+
 #ifdef X_NOT_POSIX
 #define Size_t unsigned int
 #else
@@ -117,6 +139,9 @@
 	bzero((char *) &client, sizeof(client));
 	bzero((char *) &prefix, sizeof(prefix));
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+        fprintf(stderr, "\nXOpenDisplay: Called with display [%s].\n", display);
+#endif
 	/*
 	 * If the display specifier string supplied as an argument to this 
 	 * routine is NULL or a pointer to NULL, read the DISPLAY variable.
@@ -162,6 +187,9 @@
 
 	dpy->fd = _X11TransGetConnectionNumber (dpy->trans_conn);
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST) 
+        fprintf(stderr, "\nXOpenDisplay: Connected display with dpy->fd = [%d].\n", dpy->fd);
+#endif
 	/* Initialize as much of the display structure as we can.
 	 * Initialize pointers to NULL so that XFreeDisplayStructure will
 	 * work if we run out of memory before we finish initializing.
@@ -258,6 +286,10 @@
         conn_buf_size = 1024 * strtol(xlib_buffer_size, NULL, 10);
     if (conn_buf_size < XLIBMINBUFSIZE)
         conn_buf_size = XLIBMINBUFSIZE;
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST) 
+    fprintf (stderr, "Xlib: Running with XLIBBUFFERSIZE [%d] XLIBMINBUFSIZE [%d] "
+                 "buffer size [%ld].\n", XLIBDEFAULTBUFSIZE, XLIBMINBUFSIZE, conn_buf_size);
+#endif
 
     if ((dpy->bufptr = dpy->buffer = Xcalloc(1, conn_buf_size)) == NULL) {
          OutOfMemory (dpy, setup);
@@ -324,9 +356,16 @@
 
 	if (prefix.majorVersion != X_PROTOCOL) {
 	    /* XXX - printing messages marks a bad programming interface */
+#ifdef NX_TRANS_SOCKET
+            if (_X11TransSocketProxyConnInfo(dpy->trans_conn) == NULL) {
+                fprintf (stderr, "Xlib: client uses different protocol version (%d) "
+                             "than server (%d)!\r\n", X_PROTOCOL, prefix.majorVersion);
+            }
+#else
 	    fprintf (stderr,
      "Xlib: client uses different protocol version (%d) than server (%d)!\r\n",
 		     X_PROTOCOL, prefix.majorVersion);
+#endif
 	    _XDisconnectDisplay (dpy->trans_conn);
 	    Xfree ((char *)dpy);
 	    return(NULL);
@@ -698,6 +737,9 @@
 /*
  * and return successfully
  */
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST) 
+        fprintf(stderr, "XOpenDisplay: Returning display at [%p].\n", dpy);
+#endif
  	return(dpy);
 }