[dundee] Fwd: [ubuntu-uk] Disable touchpad while typing

[Dan Bolser]

2009/4/26 Andrew Clayton <andrew at digital-domain.net>:
> On Sun, 26 Apr 2009 12:12:17 +0100, Dan Bolser wrote:
>
>> That's working great on my Hardy laptop (a gripe I never got round to
>> investigating), however, since we're fixing things... I recently
>> started to notice a problem with my touchpads vertical scrolling
>> function (which I love). The problem is that the vertical scroll
>> region of the touch pad extends well beyond the physically defined
>> region of the touch pad on the right.
>>
>> To be clear my touch pad is is about 7cm wide, and there is a small
>> vertical ridge at 6cm to demark the 'scrollie button' region. However,
>> this feature is active from about the 5th cm along the touchpad. I
>> find this really annoying, as I'm just about to move the mouse to
>> click, all of a sudden the point I was aiming for is leaping up or
>> down the screen (keeping my left hand on the kbd and 'reaching for the
>> mouse' with my right hand naturally puts my finger on the right side
>> of the touch pad).
>>
>> How can I configure the region of the touchpad responsible for
>> horizontal scrolling? (to make it smaller).
>
> Sounds like you want to adjust the RightEdge Coordinates. Try tweaking
> Option "RightEdge" "integer"
>
> Take a look at the synaptics man page (where you'll find a diagram
> showing how the touchpad is split up).
>
> How you make this change will vary depending on what versions of the
> xserver and synaptics driver you have. You'll either have to do the
> SHM/fdi file hack or you'll be able to set this through the xinput
> utility.

Beautiful! After setting up "SHMConfig" "true", I could play with the
setting through synclient. I bumped the value of RightEdge from 5072
(synclient -l) to 5900, which is just about perfect. Much above this
and it seems to 'cut-off' (vertical scrolling stops working
completely), but its not a problem. I set this in xorg.conf so its now
fixed :-D

Thanks for the help,

Dan.


> Andrew
>
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