gdb xfce4-display-settings

(gdb) run
Starting program: /usr/bin/xfce4-display-settings
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffea54f700 (LWP 7260)]

Program received signal SIGSEGV, Segmentation fault.
0x00000000004074a4 in ?? ()
(gdb) backtrace
#0  0x00000000004074a4 in ?? ()
#1  0x0000000000407a40 in ?? ()
#2  0x00007ffff74a490f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#3  0x00007ffff66f3175 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#4  0x00007ffff6704d62 in ?? () from /usr/lib/libgobject-2.0.so.0
#5  0x00007ffff670d205 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#6  0x00007ffff670d95f in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#7  0x00007ffff75bbb9c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#8  0x00007ffff74a364b in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#9  0x00007ffff71182cc in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#10 0x00007ffff59be71d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#11 0x00007ffff59bea08 in ?? () from /usr/lib/libglib-2.0.so.0
#12 0x00007ffff59bed32 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#13 0x00007ffff74a2467 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x000000000040a5b7 in ?? ()
#15 0x0000000000406b3a in ?? ()
#16 0x00007ffff53d5800 in __libc_start_main () from /usr/lib/libc.so.6
#17 0x00000000004070f9 in ?? ()