Public bug reported:
Binary package hint: xserver-xorg-input-synaptics
When I click with the separate button (no tapping), usually only the button
pressing event is sent. The release event is only sent when I move the cursor.
Sometimes I try to simply move the cursor and the touchpad enables
click-and-drag just as if I did a double-tap-and-move, but without doing the
double-tapping. This looks related to a problem in which I single-tap, then
when I move the cursor it starts dragging... looks like the driver is not
respecting the MaxTapTime and MaxTapMove values.
If I use tapping with two or three fingers, then the above symptom is done with
middle-button-drag and right-button-drag.
Some times the single-click tap does not work.
I have fixed the problem in two ways:
1) Disable the synaptics driver commenting the touchpad entry in xorg.conf.
This is not the best option, as I lose the touchpad features such as scrolling
and double-tapping, etc.
2) I downloaded an updated package from packages.debian.org (testing branch)
and installed it. Now everything is working flawlessly.
** Affects: xserver-xorg-input-synaptics (Ubuntu)
Importance: Untriaged
Status: Unconfirmed
--
Erratic behavior of tapping
https://launchpad.net/bugs/50858
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