diff -ruN gst-fsl-plugin-2.0.3.orig/src/misc/v4l_sink/src/mfw_gst_fb.c gst-fsl-plugin-2.0.3/src/misc/v4l_sink/src/mfw_gst_fb.c
--- gst-fsl-plugin-2.0.3.orig/src/misc/v4l_sink/src/mfw_gst_fb.c	2012-06-29 11:28:36.837384109 +0800
+++ gst-fsl-plugin-2.0.3/src/misc/v4l_sink/src/mfw_gst_fb.c	2012-06-29 11:31:01.441387410 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2011 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (c) 2009-2012, Freescale Semiconductor, Inc. All rights reserved.
  *
  */
 
@@ -236,6 +236,8 @@
     ret = ioctl(v4l->fd_fb, FBIOGET_VSCREENINFO, &fb_var);
     if (ret < 0) {
         g_print("Unable to get resolution value\n");
+        v4l->fullscreen_width = 1024;
+        v4l->fullscreen_height = 768;
         return FALSE;
     }
     v4l->fullscreen_width = fb_var.xres;
diff -ruN gst-fsl-plugin-2.0.3.orig/src/misc/v4l_sink/src/mfw_gst_v4lsink.c gst-fsl-plugin-2.0.3/src/misc/v4l_sink/src/mfw_gst_v4lsink.c
--- gst-fsl-plugin-2.0.3.orig/src/misc/v4l_sink/src/mfw_gst_v4lsink.c	2012-06-29 11:28:36.837384109 +0800
+++ gst-fsl-plugin-2.0.3/src/misc/v4l_sink/src/mfw_gst_v4lsink.c	2012-06-29 11:32:26.337389344 +0800
@@ -1427,7 +1427,7 @@
             g_mutex_lock (v4l_info->flow_lock);
             v4l_info->gstXInfo->running = FALSE;
             g_mutex_unlock (v4l_info->flow_lock);
-            if (v4l_info->x11enabled) {
+            if ((v4l_info->x11enabled) && (v4l_info->gstXInfo) && (v4l_info->gstXInfo->event_thread)) {
                 g_thread_join (v4l_info->gstXInfo->event_thread);
             }
             if (v4l_info->gstXInfo->xwindow) {