GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...
(no debugging symbols found)
(gdb) break gdk_x_error
Make breakpoint pending on future shared library load? (y or [n]) 
Breakpoint 1 (gdk_x_error) pending.
(gdb) run --sync --no-daemon
Starting program: /usr/bin/gnome-settings-daemon --sync --no-daemon
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7f8666584780 (LWP 29088)]
[Switching to Thread 0x7f8666584780 (LWP 29088)]

Breakpoint 1, gdk_x_error (display=0x1fc1f90, error=0x7fff6e5be370)
    at /build/buildd/gtk+2.0-2.16.1/gdk/x11/gdkmain-x11.c:613
	in /build/buildd/gtk+2.0-2.16.1/gdk/x11/gdkmain-x11.c
(gdb) bt full
#0  gdk_x_error (display=0x1fc1f90, error=0x7fff6e5be370)
    at /build/buildd/gtk+2.0-2.16.1/gdk/x11/gdkmain-x11.c:613
No locals.
#1  0x00007f8661db15b4 in _XError (dpy=0x1fc1f90, rep=0x2023a60)
    at ../../src/XlibInt.c:2931
	rtn_val = <value optimized out>
	event = {type = 0, xany = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, window = 17208833}, xkey = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, root = 140735044903968, subwindow = 33302992, 
    time = 140215165536768, x = 126, y = 0, x_root = 33300368, y_root = 0, 
    state = 33700448, keycode = 0, same_screen = 127}, xbutton = {type = 0, 
    serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, root = 140735044903968, subwindow = 33302992, 
    time = 140215165536768, x = 126, y = 0, x_root = 33300368, y_root = 0, 
    state = 33700448, button = 0, same_screen = 127}, xmotion = {type = 0, 
    serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, root = 140735044903968, subwindow = 33302992, 
    time = 140215165536768, x = 126, y = 0, x_root = 33300368, y_root = 0, 
    state = 33700448, is_hint = 0 '\0', same_screen = 127}, xcrossing = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, root = 140735044903968, subwindow = 33302992, 
    time = 140215165536768, x = 126, y = 0, x_root = 33300368, y_root = 0, 
    mode = 33700448, detail = 0, same_screen = 127, focus = 0, state = 0}, 
  xfocus = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, window = 17208833, mode = 1851515936, detail = 32767}, 
  xexpose = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, window = 17208833, x = 1851515936, y = 32767, 
    width = 33302992, height = 0, count = 1663191552}, xgraphicsexpose = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    drawable = 17208833, x = 1851515936, y = 32767, width = 33302992, 
    height = 0, count = 1663191552, major_code = 32646, minor_code = 126}, 
  xnoexpose = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, drawable = 17208833, major_code = 1851515936, 
    minor_code = 32767}, xvisibility = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, window = 17208833, 
    state = 1851515936}, xcreatewindow = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, parent = 17208833, 
    window = 140735044903968, x = 33302992, y = 0, width = 1663191552, 
    height = 32646, border_width = 126, override_redirect = 0}, 
  xdestroywindow = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, event = 17208833, window = 140735044903968}, xunmap = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    event = 17208833, window = 140735044903968, from_configure = 33302992}, 
  xmap = {type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    event = 17208833, window = 140735044903968, override_redirect = 33302992}, 
  xmaprequest = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, parent = 17208833, window = 140735044903968}, xreparent = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    event = 17208833, window = 140735044903968, parent = 33302992, 
    x = 1663191552, y = 32646, override_redirect = 126}, xconfigure = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    event = 17208833, window = 140735044903968, x = 33302992, y = 0, 
    width = 1663191552, height = 32646, border_width = 126, above = 33300368, 
    override_redirect = 33700448}, xgravity = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, event = 17208833, 
    window = 140735044903968, x = 33302992, y = 0}, xresizerequest = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, width = 1851515936, height = 32767}, 
  xconfigurerequest = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, parent = 17208833, window = 140735044903968, x = 33302992, 
    y = 0, width = 1663191552, height = 32646, border_width = 126, 
    above = 33300368, detail = 33700448, value_mask = 127}, xcirculate = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    event = 17208833, window = 140735044903968, place = 33302992}, 
  xcirculaterequest = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, parent = 17208833, window = 140735044903968, 
    place = 33302992}, xproperty = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, window = 17208833, 
    atom = 140735044903968, time = 33302992, state = 1663191552}, 
  xselectionclear = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, window = 17208833, selection = 140735044903968, 
    time = 33302992}, xselectionrequest = {type = 0, serial = 33300368, 
    send_event = 77594625, display = 0x7f, owner = 17208833, 
    requestor = 140735044903968, selection = 33302992, 
    target = 140215165536768, property = 126, time = 33300368}, xselection = {
    type = 0, serial = 33300368, send_event = 77594625, display = 0x7f, 
    requestor = 17208833, selection = 140735044903968, target = 33302992, 
    property = 140215165536768, time = 126}, xcolormap = {type = 0, 
    serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, colormap = 140735044903968, new = 33302992, state = 0}, 
  xclient = {type = 0, serial = 33300368, send_event = 77594625, 
    display = 0x7f, window = 17208833, message_type = 140735044903968, 
    format = 33302992, data = {
      b = "\000J\"c\206\177\000\000~\000\000\000\000\000\000\000\220\037ü\001", s = {18944, 25378, 32646, 0, 126, 0, 0, 0, 8080, 508}, l = {140215165536768, 
        126, 33300368, 33700448, 127}}}, xmapping = {type = 0, 
    serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, request = 1851515936, first_keycode = 32767, 
    count = 33302992}, xerror = {type = 0, display = 0x1fc1f90, 
    resourceid = 77594625, serial = 127, error_code = 1 '\001', 
    request_code = 150 '\226', minor_code = 6 '\006'}, xkeymap = {type = 0, 
    serial = 33300368, send_event = 77594625, display = 0x7f, 
    window = 17208833, 
    key_vector = " ä[nÿ\177\000\000Ð)ü\001\000\000\000\000\000J\"c\206\177\000\000~\000\000\000\000\000\000"}, pad = {0, 33300368, 77594625, 127, 17208833, 
    140735044903968, 33302992, 140215165536768, 126, 33300368, 33700448, 127, 
    0, 140215162442358, 33700416, 140215144122660, 140735044903968, 
    140735044903960, 140735044904040, 33302992, 72197809203464704, 0, 0, 
    140735044904040}}
	async = <value optimized out>
	next = (_XAsyncHandler *) 0x2023a60
#2  0x00007f8661db906b in _XReply (dpy=0x1fc1f90, rep=0x7fff6e5be4c0, extra=0, 
    discard=0) at ../../src/xcb_io.c:506
	ext = (_XExtension *) 0x0
	ret_code = <value optimized out>
	error = (xcb_generic_error_t *) 0x2023a60
	c = <value optimized out>
	__PRETTY_FUNCTION__ = "_XReply"
#3  0x00007f866228618d in XRRGetScreenSizeRange () from /usr/lib/libXrandr.so.2
No symbol table info available.
#4  0x00007f865d886715 in screen_info_new (screen=0x2022460, needs_reprobe=1, 
    error=0x7fff6e5be6c8) at gnome-rr.c:310
	info = (ScreenInfo *) 0x20224c0
	__PRETTY_FUNCTION__ = "screen_info_new"
#5  0x00007f865d887567 in gnome_rr_screen_new (gdk_screen=0x1fd20d0, 
    callback=0x7f865da9a1a0 <on_randr_event>, data=0x1fd4890, 
    error=0x7fff6e5be6c8) at gnome-rr.c:564
	screen = (GnomeRRScreen *) 0x2022460
	dpy = (Display *) 0x1fc1f90
	event_base = 107
	ignore = 0
	__PRETTY_FUNCTION__ = "gnome_rr_screen_new"
#6  0x00007f865da997c3 in gsd_xrandr_manager_start (manager=0x1fd4890, 
    error=0x7fff6e5be6c8) at gsd-xrandr-manager.c:1470
	__PRETTY_FUNCTION__ = "gsd_xrandr_manager_start"
#7  0x00007f865da97987 in impl_activate (plugin=0x201c060)
    at gsd-xrandr-plugin.c:78
	res = <value optimized out>
	error = (GError *) 0x0
#8  0x0000000000405d72 in gnome_settings_plugin_info_activate ()
No symbol table info available.
#9  0x00000000004049a5 in ?? ()
No symbol table info available.
#10 0x00007f866349e0cd in g_slist_foreach () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#11 0x0000000000404baa in gnome_settings_manager_start ()
No symbol table info available.
#12 0x00000000004047a4 in main ()
No symbol table info available.
(gdb) q
The program is running.  Exit anyway? (y or n)