#0  0x00007f55a9523092 in g_simple_async_result_set_check_cancellable (simple=0x7f55ad485cb0, check_cancellable=0x2) at /build/buildd/glib2.0-2.31.20/./gio/gsimpleasyncresult.c:1089
        __inst = 0x2
        __t = 140005953289680
        __r = <optimized out>
        __PRETTY_FUNCTION__ = "g_simple_async_result_set_check_cancellable"
#1  0x00007f55a9581d6a in g_dbus_proxy_call_internal (proxy=0x7f55ad3305b0, method_name=0x7f559e31cecc "GetDevices", parameters=0x0, flags=G_DBUS_CALL_FLAGS_NONE, timeout_msec=200, fd_list=0x0, cancellable=0x2, callback=0x7f559e31b9a0 <get_devices_cb>, user_data=0x7f55ad02c150) at /build/buildd/glib2.0-2.31.20/./gio/gdbusproxy.c:2703
        simple = 0x7f55ad485cb0
        was_split = <optimized out>
        split_interface_name = 0x0
        split_method_name = <optimized out>
        target_method_name = <optimized out>
        target_interface_name = <optimized out>
        destination = <optimized out>
        reply_type = 0x0
        __PRETTY_FUNCTION__ = "g_dbus_proxy_call_internal"
#2  0x00007f55a9584484 in g_dbus_proxy_call (proxy=<optimized out>, method_name=<optimized out>, parameters=<optimized out>, flags=<optimized out>, timeout_msec=<optimized out>, cancellable=<optimized out>, callback=0x7f559e31b9a0 <get_devices_cb>, user_data=0x7f55ad02c150) at /build/buildd/glib2.0-2.31.20/./gio/gdbusproxy.c:2977
No locals.
#3  0x00007f559e31b959 in got_power_proxy_cb (source_object=<optimized out>, res=0x7f55ad33eed0, user_data=0x7f55ad02c150) at cc-power-panel.c:794
        error = 0x0
        priv = 0x7f55ad02c290
#4  0x00007f55a952298d in g_simple_async_result_complete (simple=0x7f55ad33eed0) at /build/buildd/glib2.0-2.31.20/./gio/gsimpleasyncresult.c:767
        current_source = <optimized out>
        current_context = <optimized out>
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#5  0x00007f55a9522abc in complete_in_idle_cb (data=0x7f55ad33eed0) at /build/buildd/glib2.0-2.31.20/./gio/gsimpleasyncresult.c:779
        simple = <optimized out>
#6  0x00007f55a8fb2dda in g_main_dispatch (context=0x7f55acf12eb0) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:2510
        dispatch = 0x7f55a8fb0a30 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7f55ad33eed0
        callback = 0x7f55a9522aa0 <complete_in_idle_cb>
        cb_funcs = 0x7f55a925e9a0
        cb_data = 0x7f55ad48e870
        current_source_link = {data = 0x7f55ad48e9a0, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f55ad48e9a0
        current = 0x7f55ad12ab80
        i = <optimized out>
#7  g_main_context_dispatch (context=0x7f55acf12eb0) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3047
No locals.
#8  0x00007f55a8fb31a0 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f55acf12eb0, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3118
        timeout = 0
        some_ready = 1
        fds = <optimized out>
        max_priority = 0
        nfds = 5
        allocated_nfds = <optimized out>
#9  g_main_context_iterate (context=0x7f55acf12eb0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3055
        some_ready = 1
#10 0x00007f55a8fb3264 in g_main_context_iteration (context=0x7f55acf12eb0, may_block=1) at /build/buildd/glib2.0-2.31.20/./glib/gmain.c:3179
        retval = <optimized out>
#11 0x00007f55a9550994 in g_application_run (application=0x7f55ad032220, argc=<optimized out>, argv=0x7fffb4b2c7c8) at /build/buildd/glib2.0-2.31.20/./gio/gapplication.c:1496
        arguments = 0x7f55ad2b6130
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#12 0x00007f55ab0dc75a in main (argc=2, argv=0x7fffb4b2c7c8) at control-center.c:207
        shell = <optimized out>
        application = 0x7f55ad032220
        status = <optimized out>