StacktraceTop: ?? () notify_volume_cb (object=0xa028020, pspec=0xa015ad8, g_signal_handler_block () from /usr/lib/libgobject-2.0.so.0 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 g_signal_connect_data () from /usr/lib/libgobject-2.0.so.0
StacktraceTop: handler_ block () from /usr/lib/ libgobject- 2.0.so. 0 libgobject- 2.0.so. 0 connect_ data () from /usr/lib/ libgobject- 2.0.so. 0
?? ()
notify_volume_cb (object=0xa028020, pspec=0xa015ad8,
g_signal_
g_closure_invoke () from /usr/lib/
g_signal_