Due to the way scroll events are handled in X today, there's no way
around this. The scroll events are generated in the X input module,
which has no idea of what is really going on on the desktop. One could
say that your application should see the closure of a tab and then
ignore all scroll events until scrolling stops, but scroll events are
handled as button presses so the X client doesn't know when scrolling
has stopped. This issue can also be found in OS X where you can do
similar things.
The goal is to replace X input module scroll events with utouch gesture
events. These events can know about the window hierarchy so they
terminate when a window is closed. The gestures also have a start and a
stop, allowing the utouch client to stop handling a scroll gesture when
the tab has closed until the gesture ends.
Because there's no real resolution to this issue in the current
toolkits/X, I'm closing this as Won't Fix.
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/728643
Title:
Kinetic scrolling implementation continues to send scroll event after
physical action has stopped
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