Double clicks not recognized through the trackpad

I've seen a number of issues/bug reports concerning double click behavior, both here on GitHub and on Stack Overflow.

For my part, I noticed that none of the double click gestures were being picked up--in particular, double click to restore zoom level, or double click on legend to hide all other traces.

I observed this behavior while using my laptop's trackpad. However, when I plugged in a mouse, double clicks using that device were recognized just fine. I don't have trouble double clicking using the trackpad in other applications.

I know this issue report is kind of general, and doesn't really zero in on where the problem lies, but I thought I'd throw in this bit of information in case it helps in diagnosing.

Inizia riproducendo il comportamento del doppio clic sul trackpad di un laptop rispetto a quello di un mouse per il ripristino dello zoom e le interazioni con la legenda. Confronta i due dispositivi di input nelle interazioni del grafico interessate e determina cosa deve cambiare affinché entrambi riconoscano i doppi clic; il lavoro è completato quando entrambi i gesti segnalati funzionano senza compromettere il comportamento del mouse.