Single touchpad tap causes two click events

[gregreen]

A single tap on the touchpad sometimes causes two left-click events. One way to trigger this behavior is to do a two-finger tap (to emulate a right click), and after the context menu comes up, to do a single tap somewhere else. The single tap will then be interpreted as two separate left clicks.

Steps to reproduce:

1. Open up Chrome, navigate to search engine, and execute a search.

2. Tap on one of the links with two fingers. A context menu appears.

3. Tap once on "Open in New Tab," making sure that the link is also directly below the mouse when you tap.

4. Often, two left clicks occur: the first left click selects "Open in New Tab," and the second left click opens the link a second time.

Expected behavior: In the above example, only one left click should fire. The link should only be opened once, not twice.

What happened instead: In the above example, the link is opened twice, indicating that two left clicks fired, rather than just one.

System:

* Distribution: Ubuntu 14.04
* Kernel: 3.13.0-37-generic
* Touchpad: ETPS/2 Elantech Touchpad
* xserver-xorg-input-synaptics: 1.7.4-0ubuntu1

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

that's not a rb issue