.
Thread 4 (Thread 0x7f2867fff700 (LWP 3806)):
#0  0x00007f287f54788d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f287fa7e1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f287fa7e572 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f28800764a6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f287faa4965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f287f81d6aa in start_thread (arg=0x7f2867fff700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f2867fff700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139811520247552, -9049514326200104448, 0, 139811762030783, 139811520248256, 139811654509600, 8951297152098290176, 8951279918743996928}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f287f552e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 3 (Thread 0x7f2875e94700 (LWP 3801)):
#0  0x00007f287f54788d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f287fa7e1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f287fa7e2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f287fa7e339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f287faa4965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f287f81d6aa in start_thread (arg=0x7f2875e94700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f2875e94700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139811753641728, -9049514326200104448, 0, 140726136305871, 139811753642432, 0, 8951257721614158336, 8951279918743996928}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f287f552e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 2 (Thread 0x7f2876695700 (LWP 3800)):
#0  0x00007f287f54788d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f287fa7e1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f287fa7e2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f287669d28d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f287faa4965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f287f81d6aa in start_thread (arg=0x7f2876695700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f2876695700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139811762034432, -9049514326200104448, 0, 140726136302495, 139811762035136, 12527616, 8951263216487942656, 8951279918743996928}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f287f552e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 1 (Thread 0x7f288158fa00 (LWP 3783)):
#0  0x00007f287fa8489b in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#1  0x00007f287fa84a0f in g_log () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f287eec2828 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#3  0x00007f287eecd879 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#4  0x00007f287e125c4d in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#5  0x00007f287e122ad7 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#6  0x00007f287e123c58 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#7  0x00007f287dedff32 in XIQueryDevice () from /usr/lib/x86_64-linux-gnu/libXi.so.6
No symbol table info available.
#8  0x00007f28654f066e in xdevice_get_dimensions () from /usr/lib/unity-settings-daemon-1.0/libxrandr.so
No symbol table info available.
#9  0x00007f28654eb132 in ?? () from /usr/lib/unity-settings-daemon-1.0/libxrandr.so
No symbol table info available.
#10 0x00007f28654ee140 in ?? () from /usr/lib/unity-settings-daemon-1.0/libxrandr.so
No symbol table info available.
#11 0x00007f287fd53015 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f287fd65061 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#13 0x00007f287fd6ddfc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007f287fd6e12f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007f288101f2d4 in ?? () from /usr/lib/libunity-settings-daemon.so.1
No symbol table info available.
#16 0x00007f288101f3b6 in gsd_rr_screen_refresh () from /usr/lib/libunity-settings-daemon.so.1
No symbol table info available.
#17 0x00007f28654ed28a in ?? () from /usr/lib/unity-settings-daemon-1.0/libxrandr.so
No symbol table info available.
#18 0x00007f287fd53015 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#19 0x00007f287fd65061 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#20 0x00007f287fd6ddfc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#21 0x00007f287fd6e12f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#22 0x00007f287fd57544 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#23 0x00007f287fd599d1 in g_object_notify () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#24 0x00007f287fd53015 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#25 0x00007f287fd65061 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#26 0x00007f287fd6ddfc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#27 0x00007f287fd6e12f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#28 0x00007f287fd57544 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#29 0x00007f287fd599d1 in g_object_notify () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#30 0x00007f28673d1b4c in ?? () from /usr/lib/x86_64-linux-gnu/libupower-glib.so.3
No symbol table info available.
#31 0x00007f287c17cd90 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#32 0x00007f287c17c7f8 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#33 0x00007f287fd53839 in g_cclosure_marshal_generic () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#34 0x00007f287fd53015 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#35 0x00007f287fd6560e in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#36 0x00007f287fd6ddfc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#37 0x00007f287fd6e12f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#38 0x00007f2880072fe9 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#39 0x00007f28800626b4 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#40 0x00007f287fa7deaa in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#41 0x00007f287fa7e250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#42 0x00007f287fa7e572 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#43 0x00007f288051e775 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#44 0x00000000004037f1 in main ()
No symbol table info available.