Touchscreen usage

[Liam Proven]

On 6 March 2012 15:39, H.S.Rai <hardeep.rai at gmail.com> wrote:
> I am using Ubuntu 11:10
>
> I tried to use TouchScreen. It is reversed, i.e. if I touch top left
> corner, it take it as bottom right. I referred:
>
> http://ubuntuforums.org/showthread.php?t=1755896
>
> Added option like following (not clear from above link where to add):
>
> Option  "InvertX" "true"
>
> But found no effect.
>
> Used xinput_calibrator, output shown below signature, but problem
> remain as such. It says:
>
> copy the snippet into '/etc/X11/xorg.conf.d/99-calibration.conf'
>
> But there is no file there named 99-calibration.conf
>
> Can I get tip for easy setup / calibration of touch screen?
>
> One more issue I observed. When I startr PC, screen display is fine,
> but when I issue:
>
> service lightdm restart
>
> screen get shifted to right, some portion not visible and some part blank.

You have not specified what computer you are using, or failing that,
what models of graphics chip, driver, screen and touchscreen hardware
and driver.

But anyway:

I have seen this too, on an MSI all-in-one PC.

I worked on the problem for a long time as did 2 of my colleagues. In
the end I could find no solution, we returned the machine to the
vendor and bought an Asus model instead.

We have different problems with that. :¬/

I did manage to install an elderly HAL driver aimed at Ubuntu 8.x/9.x
and get the MSI sort-of working, but only at an incorrect resolution,
with a mis-sized & badly fuzzy image and permanent misalignment of
about 1cm. In other words, totally unacceptable and unusable.

-- 
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