.
Thread 1 (process 7487):
#0  0x00007f36f71c4a11 in IA__gdk_window_set_opacity (window=0x7f36f83109ed, 
    opacity=<value optimized out>)
    at /build/buildd/gtk+2.0-2.20.0/gdk/x11/gdkwindow-x11.c:5506
	__t = <value optimized out>
	__r = <value optimized out>
	display = <value optimized out>
	cardinal = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__gdk_window_set_opacity"
#1  0x00007f36f8097f79 in fadeout_callback (fadeout=0x1dee660)
    at libgksu.c:326
	current_time = {tv_sec = 1270660174, tv_usec = 402672}
	elapsed = <value optimized out>
	percent = <value optimized out>
#2  0x00007f36f4f308c2 in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f36f4f34748 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f36f4f34c55 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f36f74c844b in IA__gtk_dialog_run (dialog=0x1f88020)
    at /build/buildd/gtk+2.0-2.20.0/gtk/gtkdialog.c:1089
	ri = {dialog = 0x0, response_id = -1, loop = 0x1d548f0, destroyed = 0}
	was_modal = 0
	response_handler = 67
	unmap_handler = 68
	destroy_handler = 70
	delete_handler = 69
	__PRETTY_FUNCTION__ = "IA__gtk_dialog_run"
#6  0x00007f36f8098311 in report_failed_grab (what=4165646490)
    at libgksu.c:636
	dialog = (GtkWidget *) 0x1f88020
#7  0x00007f36f80985ad in grab_keyboard_and_mouse (dialog=0x1def080)
    at libgksu.c:687
	status = <value optimized out>
	grab_tries = 17
	lock = <value optimized out>
	pid = <value optimized out>
	fname = <value optimized out>
#8  0x00007f36f8098a78 in su_ask_password (context=0x1dd27b0, 
    prompt=<value optimized out>, data=<value optimized out>, 
    error=0x7fff93537f50) at libgksu.c:1028
	dialog = (GtkWidget *) 0x1def080
	msg = <value optimized out>
	password = <value optimized out>
	tmp = <value optimized out>
	retvalue = <value optimized out>
	lock = 0
	gksu_quark = 711
#9  0x00007f36f8099722 in gksu_sudo_fuller (context=0x1dd27b0, 
    ask_pass=<value optimized out>, ask_pass_data=<value optimized out>, 
    pass_not_needed=<value optimized out>, 
    pass_not_needed_data=<value optimized out>, 
    exit_status=<value optimized out>, error=0x7fff93537f50) at libgksu.c:2955
	password = <value optimized out>
	prompt_grab = <value optimized out>
	counter = 1
	cmdline = <value optimized out>
	pid_exited = <value optimized out>
	cmd = <value optimized out>
	buffer = "GNOME_SUDO_PASS", '\0' <repeats 240 times>
	argcount = <value optimized out>
	i = <value optimized out>
	j = <value optimized out>
	gksu_quark = 711
	xauth = (gchar *) 0x1de0830 "/tmp/libgksu-TmH7m5/.Xauthority"
	xauth_env = (
    gchar *) 0x7fff93539d4d "/var/run/gdm/auth-for-jo-4JHYxJ/database"
	status = <value optimized out>
	infile = (FILE *) 0x1dedad0
	outfile = (FILE *) 0x1dedd10
	parent_pipe = {18, 20}
	child_pipe = {21, 22}
#10 0x000000000040453e in main (argc=<value optimized out>, 
    argv=<value optimized out>) at gksu.c:825
	gconf_client = (GConfClient *) 0x1dd0d80
	count = 0
	context = (GksuContext *) 0x1dd27b0
	error = (GError *) 0x0
	newargc = 18
	newargv = (gchar **) 0x1d39d40
	exit_status = -1 '�'
	run_mode = 2
	c = <value optimized out>