Public bug reported:
I installed Hardy Heron 8.04 on my HP tx1350el and got the touch screen
to work using the xserver-xorg-input-evtouch 0.8.7-3ubuntu1 version.
After calibration I got it to work, and it works quite well as long as
the screen is in its normal position (i.e. xrandr -o normal) or in the
inverted position (i.e. xrandr -o inverted), but when it is left or
right rotated (i.e. xrandr -o left or xrandr -o right) the position of
the cursor and the pen are different. I have noticed that touching the
rotated upper left corner the cursor appears very close to the touching
zone, i.e. it's almost correct, but in other zones the cursor appears in
totally incorrect position. More precisely, if I touch the rotated upper
right corner the cursor moves in a position close to the middle upper
part of the rotated screen, if I touch the rotated screen in the middle
of the left border, the cursor moves to the lower left corner. In other
words, in the rotated screen pen touches get their vertical coordinates
amplified and horizontal coordinates reduced. Something similar happens
if I change the resolution. I made the calibration at 1280x800, so that
other resolution have smaller sizes and the pen touches coordinated are
both reduced.
** Affects: xf86-input-evtouch (Ubuntu)
Importance: Undecided
Status: New
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evtouch works incorrectly when the screen is left or right rotated
https://bugs.launchpad.net/bugs/222164
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