Starting program: /usr/bin/gnome-settings-daemon 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffef07e700 (LWP 28942)]
[New Thread 0x7fffee87d700 (LWP 28943)]
[New Thread 0x7fffede70700 (LWP 28944)]
[New Thread 0x7fffdf183700 (LWP 28945)]
[New Thread 0x7fffde775700 (LWP 28950)]

Program received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff665c3d9 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#0  0x00007ffff665c3d9 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffff665c522 in g_log () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff537c930 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#3  0x00007ffff53872e1 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#4  0x00007ffff590d5ab in _XError (dpy=dpy@entry=0x647970, rep=rep@entry=0x6f8450) at ../../src/XlibInt.c:1463
#5  0x00007ffff590a627 in handle_error (dpy=0x647970, err=0x6f8450, in_XReply=<optimized out>) at ../../src/xcb_io.c:213
#6  0x00007ffff590a6d5 in handle_response (dpy=dpy@entry=0x647970, response=0x6f8450, in_XReply=in_XReply@entry=1) at ../../src/xcb_io.c:325
#7  0x00007ffff590b5d0 in _XReply (dpy=dpy@entry=0x647970, rep=rep@entry=0x7fffffffdf00, extra=extra@entry=0, discard=discard@entry=1) at ../../src/xcb_io.c:627
#8  0x00007ffff590710d in XSync (dpy=0x647970, discard=discard@entry=0) at ../../src/Sync.c:44
#9  0x00007ffff590719b in _XSyncFunction (dpy=<optimized out>) at ../../src/Synchro.c:35
#10 0x00007ffff4e279f1 in XRRSetOutputPrimary (dpy=0x647970, window=715, output=66) at ../../src/XrrOutput.c:160
#11 0x00007ffff75b6441 in gnome_rr_config_apply_with_time () from /usr/lib/libgnome-desktop-3.so.7
#12 0x00007fffddb61ee0 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#13 0x00007fffddb63ffa in gsd_xrandr_manager_start () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#14 0x00007fffddb60df3 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#15 0x00000000004052a0 in gnome_settings_plugin_info_activate ()
#16 0x0000000000404135 in _start ()
A debugging session is active.

	Inferior 1 [process 28937] will be killed.

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