Expected behaviour

Icon would draw properly and handle the mouse events properly

Actual behaviour

When compiled with Qt 5.6.0 or Qt 5.5.1 or with https://download.qt.io/archive/qt/5.5/5.5.0/qt-opensource-linux-x64-5.5.0-2.run , N/A icon is shown instead of the specified image, mouse clicks are handled improperly (trigger, double click, middle click do not generate the signal: activated(QSystemTrayIcon::ActivationReason)).

Under Qt 5.7.0 (released 15-Jun-2016 into https://download.qt.io/archive/qt/5.7/5.7.0/ ), the icon's image displays properly and correctly (as expected), but the mouse signals are not delivered (trigger, double click, middle click do not generate the signal: activated(QSystemTrayIcon::ActivationReason))

Under Qt 5.3.2 or Qt 5.1.1, the tray icon seems to be invisible.

Additional info:

Qt 5.0.2 does not have this issue, tray icon appearance is okay and mouse events are delivered okay.