Hi
>
> Anyway the touch screen just started working like the touchpad, nice and
> smooth, no taps etc... but the cursor moved farther than the stylus. So I did
> a little googleing and head scratching, and ended up installing xserver-xorg-
> input-evtouch, and libts. It calibrates fine, and now I have mouse clicks for
> taps, but the problem is it is not very accurate. Draging the finger or stylus
> across the screen the cursor jumps about 1/4 to 1/2 inch at a time, and it is
> difficult to select items with it because it is like it is a grid or
> something.
> I did a modprobe usbtouchscreen and now the correct module is loaded but still
> no better.
>
Have you run the calibration touchscreen program
# /usr/lib/xf86-input-evtouch/calibrate.sh
when this is completed look in /etc/evtouch/config and note the
answers (you may need to make a hal configuration file for your screen
in /etc/hal/fdi/policy/CF-19.fdi)
This file will look like:
<?xml version="1.0" encoding="UTF-8"?> <!-- -*- SGML -*- -->
<deviceinfo version="0.2">
<device>
<match key="info.product" contains="TouchScreen">
<match key="info.capabilities" contains="input">
<merge key="input.x11_driver" type="string">evtouch</merge>
<merge key="input.x11_options.minx" type="string">59</merge>
<merge key="input.x11_options.miny" type="string">82</merge>
<merge key="input.x11_options.maxx" type="string">963</merge>
<merge key="input.x11_options.maxy" type="string">989</merge>
<!--bottom, left to right-->
<merge key="input.x11_options.x0" type="string">-3</merge>
<merge key="input.x11_options.x1" type="string">7</merge>
<merge key="input.x11_options.x2" type="string">0</merge>
<!--mid, left to right-->
<merge key="input.x11_options.x3" type="string">-9</merge>
<merge key="input.x11_options.x4" type="string">3</merge>
<merge key="input.x11_options.x5" type="string">14</merge>
Note:
On some devices the calibrate results seem to be inverted – in this
case it is good to know that x0,y0 should be the bottom left of the
screen. You might have to tweak these co-ordinates. Increase numbers
to move the cursor to the right, or up, relative to the stylus. It is
likely that if you have values over 20 or below -20 they are likely to
be wrong;)
Maybe post the results of calibrate.sh here on the list if you do not
feel confident doing this yourself
HTH
Ian
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