Comment 2 for bug 937204

StacktraceTop:
 XSync (dpy=0xee6830, discard=0) at ../../src/Sync.c:44
 apply_settings (settings=<optimized out>, key=<optimized out>, manager=0x10eb320) at gsd-keyboard-manager.c:263
 g_closure_invoke (closure=0x11c0d20, return_value=0x0, n_param_values=2, param_values=0x7f78dc039f90, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=<optimized out>, detail=1549, instance=<optimized out>, emission_return=0x0, instance_and_params=0x7f78dc039f90) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3302
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7ffffae93b08) at /build/buildd/glib2.0-2.31.16/./gobject/gsignal.c:3033