Public bug reported:
Binary package hint: xorg-driver-synaptics
I'm using an Acer Aspire 5100 laptop with a multibutton synaptics
touchpad. This particular model has a center button that also acts as a
scroll-wheel.
1) When using 64-bit Dapper, the left button doesn't always work
correctly. Double-clicking is unreliable, but dragging is almost
impossible. It seems to work a little better if the button is clicked
once and then held on the second click to drag (as would be done with
tapping to drag), but because of the unreliable double-clicks even that
is not 100% effective.
2) To disable erratic clicking and dragging due to unintentional taps on
the touchpad itself, both "MaxTapTime" and "TapButton1" must be set to
"0" in xorg.conf. However, other than the wild sensitivity common in
laptops, the touchpad works much better than the buttons.
These problems are not present in Windows or 32-bit Ubuntu, and I can
disable synaptics to use the touchpad well at the expense of easy
scrolling with the edge of the touchpad.
** Affects: xorg-driver-synaptics (Ubuntu)
Importance: Untriaged
Status: Unconfirmed
--
Odd touchpad behavior with AMD64 Dapper
https://launchpad.net/bugs/54057
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