ubuntu-x-swat team mailing list archive

[dmgood <gooddm@xxxxxxxxx>]

inability to do basic mousey things like rubber-banding and clicking
with precision is kinda like the mouse not working at all.  This just
might be worthy of the coveted high priority sticker.

This bug is being reported all over the place.  At one point, I was
playing with the gsynaptic stuff, and schemed what might be the matter.
Check out: http://ubuntuforums.org/showthread.php?t=1234544

Or, 
---pasty---
Hi!

Thanks for responding to my plight

Sadly, I lost the battle of Dave vs. the Touchypad... my kid's confuser
now has WinXP installed on it. Under Win, the touchpad works as
expected, so it is pretty certainly something is amiss afoot alas with
the linux driver.

Before calling no glory however, I was finally able to get gsynaptc
stuff working. This allowed me to watch the data-stream coming back from
the touchpad. The results were... interesting.

First up, the touchpad on this netbook is weird. The buttons are
integrated in to the touchy surface and not separate. When you touch the
area over the buttons, the driver reports the XY coordinates of the
touch.

When you click the button, the driver reports the touch before the click
occurs. As you start to press on the button and before it clicks, you
will see the XY coordinates of the touch moving a bit. The mouse cursor
responds by moving, thereby causing you to miss what you were tryin to
click on more often than not.

As to the drag thing being a drag... process is, click and hold the
button, then slide your finger over the surface. As you run out of
surface, pick up your finger and rinse/repeat. Except... as soon as you
lift your finger, the driver screams that the lower left corner is now
being touched (tis where you are holding the button), and the rubber-
band responds by jumping that way. This is why dragging is hosed.

Seemed the obvious fix was to get the driver to stop reporting touches
along the bottom edge of the pad. I spent a good bit of time playing
with xorg.conf setting trying to get the driver to ignore that area of
the screen... I never could get then the settings to do what I was
looking for.

Looking in the bug-lists, this problem is being reported in various
places. It appears that the smart folks are on the case. Perhaps someone
will crack this before too long.

--Dave

-- 
Touchpad movement problems in 0.99.3
https://bugs.launchpad.net/bugs/320639
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