[pulseaudio-discuss] suggested patch: only update level meters when window has focus

[Alexander E. Patrakov]

13.07.2014 16:22, Tanu Kaskinen wrote:
> I don't
> think there's any reliable way to figure out whether the window is fully
> or partially visible or fully covered by some other window, so I think
> the best solution would be to have a manual toggle in the UI for
> enabling/disabling volume meters. It could be just a check box above the
> tabs (not very pretty, but otherwise I think it would be a quite
> user-friendly solution).

Indeed. And with compositing window managers, the whole question "is 
this visible" becomes unanswerable, because there are alt-tab previews, 
transparency, taskbar button hints, overview and other unexpected places 
where even fully covered windows can render through.

-- 
Alexander E. Patrakov