Comment 357 for bug 1218322

Sebastien, here what I've got:

Type commands for breakpoint(s) 1, one per line.
End with a line saying just "end".
>bt
>c
>end
(gdb) r --replace
Starting program: /usr/bin/gnome-settings-daemon --replace
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Breakpoint 1, gdk_x_error (xdisplay=0x648620, error=0x7fffffffd870) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
268 /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c: No such file or directory.
#0 gdk_x_error (xdisplay=0x648620, error=0x7fffffffd870) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
#1 0x00007ffff590d5ab in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#2 0x00007ffff590a627 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007ffff590a6d5 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#4 0x00007ffff590b5d0 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#5 0x00007ffff58f2cc4 in _XGetWindowAttributes () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#6 0x00007ffff58f2e31 in XGetWindowAttributes () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7 0x00007ffff53934d1 in gdk_x11_window_foreign_new_for_display (display=display@entry=0x658030, window=0) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkwindow-x11.c:1200
#8 0x00007ffff5396569 in check_manager_window (x11_screen=0x65e030, notify_changes=notify_changes@entry=0) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/xsettings-client.c:479
#9 0x00007ffff53966c6 in _gdk_x11_xsettings_init (x11_screen=<optimized out>) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/xsettings-client.c:553
#10 0x00007ffff537cacf in _gdk_x11_display_open (display_name=<optimized out>) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkdisplay-x11.c:1407
#11 0x00007ffff537b051 in gdk_x11_display_manager_open_display (manager=0x619a60, name=<optimized out>) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkdisplaymanager-x11.c:53
#12 0x00007ffff704d414 in gtk_init_check (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.8.6/./gtk/gtkmain.c:990
#13 0x00000000004036a4 in main ()
[New Thread 0x7fffee76e700 (LWP 2487)]
[New Thread 0x7fffedf6d700 (LWP 2493)]
[New Thread 0x7fffed76c700 (LWP 2494)]
[New Thread 0x7fffdffff700 (LWP 2495)]

Breakpoint 1, gdk_x_error (xdisplay=0x648620, error=0x7fffffffd500) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
268 in /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c
#0 gdk_x_error (xdisplay=0x648620, error=0x7fffffffd500) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
#1 0x00007ffff590d5ab in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#2 0x00007ffff590a627 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007ffff590b6e2 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#4 0x00007ffff4e27d29 in XRRQueryOutputProperty () from /usr/lib/x86_64-linux-gnu/libXrandr.so.2
#5 0x00007ffff75b227b in ?? () from /usr/lib/libgnome-desktop-3.so.7
#6 0x00007ffff75b26aa in ?? () from /usr/lib/libgnome-desktop-3.so.7
#7 0x00007ffff6bb773a in g_initable_new_valist () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8 0x00007ffff6bb781c in g_initable_new () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9 0x00007ffff75afc01 in gnome_rr_screen_new () from /usr/lib/libgnome-desktop-3.so.7
#10 0x00007fffec4d84c2 in gsd_power_manager_start () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
#11 0x00007fffec4d9363 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
#12 0x00000000004052a0 in gnome_settings_plugin_info_activate ()
#13 0x0000000000404135 in _start ()
[New Thread 0x7fffddd25700 (LWP 2497)]
[New Thread 0x7fffdd524700 (LWP 2499)]

Breakpoint 1, gdk_x_error (xdisplay=0x648620, error=0x7fffffffd680) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
268 in /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c
#0 gdk_x_error (xdisplay=0x648620, error=0x7fffffffd680) at /build/buildd/gtk+3.0-3.8.6/./gdk/x11/gdkmain-x11.c:268
#1 0x00007ffff590d5ab in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#2 0x00007ffff590a627 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007ffff590a6d5 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#4 0x00007ffff590b5d0 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#5 0x00007ffff590710d in XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#6 0x00007ffff590719b in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7 0x00007ffff4e279f1 in XRRSetOutputPrimary () from /usr/lib/x86_64-linux-gnu/libXrandr.so.2
#8 0x00007ffff75b6441 in gnome_rr_config_apply_with_time () from /usr/lib/libgnome-desktop-3.so.7
#9 0x00007fffdc910e30 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#10 0x00007fffdc912faa in gsd_xrandr_manager_start () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#11 0x00007fffdc90fd43 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#12 0x00000000004052a0 in gnome_settings_plugin_info_activate ()
#13 0x0000000000404135 in _start ()

(gnome-settings-daemon:2481): Gdk-ERROR **: The program 'gnome-settings-daemon' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 258 error_code 8 request_code 140 minor_code 30)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

Program received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff665c3d9 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
(gdb) vladest@vladest-Aspire-V3-771:~/development/qt5$