![Florian Müllner](/assets/img/avatar_default.png)
It is possible to use the scroll wheel to adjust the volume without opening the system menu, but there is no feedback other than the icon itself in that case. To provide a less coarse indication for the volume level, display the OSD window when adjusting the volume while the slider isn't visible. https://bugzilla.gnome.org/show_bug.cgi?id=781028