Comment 21 for bug 1404302

===========test2.qml================
import QtQuick 2.3
import Ubuntu.Content 0.1

Rectangle { color: "pink" }

===========test.qml==============
import QtQuick 2.0

Rectangle {
    color: "red"
    Loader { id: loader; anchors.fill: parent; }
    MouseArea {
        anchors.fill: parent
        onClicked: loader.source = "test2.qml"
    }
}

Run:

LTTNG_UST_DEBUG=1 aa-exec-click -p com.ubuntu.camera_camera_3.0.0.611 -- qmlscene test.qml --desktop_file_hint=dialer-app

which enables extra LTTng output. I get some from Mir at startup - still no LTTng warning messages printing. But then I hit the screen, to load Ubuntu.Content plugin. I then get messages that ubuntu-app-launch registers tracepoints, and the warning messages start repeating.

My log here: http://pastebin.ubuntu.com/14883688/

Maybe UAL imported as library is doing it? I don't know yet