#0  0x00007f397d6a9901 in gdk_window_set_opacity ()
   from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#1  0x00007f397e55be99 in ?? () from /usr/lib/libgksu2.so.0
No symbol table info available.
#2  0x00007f397b847bbe in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f397b84b588 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f397b84b9e5 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f397d9abc95 in gtk_dialog_run () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#6  0x00007f397e55c231 in report_failed_grab () from /usr/lib/libgksu2.so.0
No symbol table info available.
#7  0x00007f397e55c4cd in grab_keyboard_and_mouse ()
   from /usr/lib/libgksu2.so.0
No symbol table info available.
#8  0x00007f397e55c998 in ?? () from /usr/lib/libgksu2.so.0
No symbol table info available.
#9  0x00007f397e55d581 in gksu_sudo_fuller () from /usr/lib/libgksu2.so.0
No symbol table info available.
#10 0x00000000004044f6 in ?? ()
No symbol table info available.
#11 0x00007f397b2b8abd in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#12 0x0000000000403019 in ?? ()
No symbol table info available.
#13 0x00007fff5b7fed28 in ?? ()
No symbol table info available.
#14 0x000000000000001c in ?? ()
No symbol table info available.
#15 0x0000000000000004 in ?? ()
No symbol table info available.
#16 0x00007fff5b7ffb86 in ?? ()
No symbol table info available.
#17 0x00007fff5b7ffb8b in ?? ()
No symbol table info available.
#18 0x00007fff5b7ffb95 in ?? ()
No symbol table info available.
#19 0x00007fff5b7ffbca in ?? ()
No symbol table info available.
#20 0x0000000000000000 in ?? ()
No symbol table info available.