Touchscreen issue with tslib1.4, please kindly help this.

[Simon.Chen]

Dear all,

I have faced an issue with the tslib1.4 with qt4.8.6.

1. i have compile and install tslib1.4, and copy the tslib/lib to my embedded board. i run ts_calibrate and ts_test. They all works well.

2. i compile qt4.8.6 with -qt-mouse-tslib, and copy the libs to the embedded board. and set all necessary environment variables.
   run the demo app calculator, from ./example/widget/calculator. the calculator show up, but not response when touch the screen.

3. i use the "dexdump /dev/input/touchscreen0", it had outcomes.

4. when i set
   export QWS_MOUSE_PROTO="MouseMan:/dev/input/mouse0"
   it had response when i touch the screen, but the X/Y coordinate seems not correct. because the cursor moved not exactly where i touched.
   but when i set :
   export QWS_MOUSE_PROTO="Tslib:/dev/input/touchscreen0"
   the touchscreen did not reponse.

5. cat both /dev/input/touchscreen and /dev/input/mouse0, they all have outcomes when i touch the screen. but there is not mouse exist,

could any one help me on this?
Thanks.

[SGaist]

Hi and welcome to devnet,

Did you also set all the Tslib environment variables before running your application ?

[mkrr]

I solved my problem on QT 4.8 using this:
export QWS_MOUSE_PROTO="linuxinput:/dev/input/touchscreen0"

I used "linuxinput" instead of "tslib".

If you execute "ts_test", the touch works?