Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
When using vertical two finger scroll to scroll a PDF in qpdfview,
the screen may jump half a page up. This happens randomly, but more
often when the document area was not focused before.
* What outcome did you expect instead?
Scrolling via other means, such as the trackpoint, works as expected.
The window manager in question is i3. Building 0.4.15 from source did
not solve the problem.
My touchpad information, should it be required, is attached.