topic Re: ts_calibrate issue in i.MX Processors

ts_calibrate issue

wangvictor — Fri, 03 Nov 2017 06:25:07 GMT

Hi All,

I'm using i.MX6 sabresd for my layer.

And I'm using egalax resist touch so I need to using ts_calibrate to reconfigure my touch xres and yres.

Now I am facing the problem that my xres and yres are opposite.

How to fix this problem?

Thanks in Advanced!

Re: ts_calibrate issue

igorpadykov — Fri, 03 Nov 2017 06:55:31 GMT

Hi Wang

one can look at driver sources an debug it

linux-imx6/egalax_ts.c at boundary-imx_3.0.35_1.1.1 · boundarydevices/linux-imx6 · GitHub

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: ts_calibrate issue

wangvictor — Fri, 03 Nov 2017 08:06:20 GMT

@igorpadykov

This is what I got when I run ts_calibrate.

I pointed five place and this is the value I got.

Took 2 samples...
Top left : X = 1912 Y = 1825
Took 1 samples...
Top right : X = 140 Y = 1818
Took 3 samples...
Bot right : X = 147 Y = 206
Took 2 samples...
Bot left : X = 1926 Y = 234
Took 1 samples...
Center : X = 1049 Y = 1066
1053.816406 -0.520339 -0.003272
618.019897 0.003143 -0.311976
Calibration constants: 69062912 -34100 -214 40502552 205 -20445 65536

But after I finished calibrate it still got the issue like this.

I click the place where locate at panel's right _top corner -> pointer will go left_down
I click the place where locate at panel's right _down corner-> pointer will go left_top

In the other hand, I tried to using ts_test to draw a line, it works perfectly.

How to fix this problem?

Thanks in Advanced!

Re: ts_calibrate issue

igorpadykov — Sun, 05 Nov 2017 22:40:34 GMT

Hi Wang

please recheck touch hardware and schematic, to exclude connection issue.

Best regards
igor

Re: ts_calibrate issue

wangvictor — Mon, 06 Nov 2017 01:29:19 GMT

igorpadykov

Sorry for asking, why is this problem relative to hardware issue?

I thought the X and Y value is correct.

Thanks in Advanced!

Re: ts_calibrate issue

igorpadykov — Mon, 06 Nov 2017 03:08:13 GMT

because you said "xres and yres are opposite".

Had you tried to debug it and compare with good board.

Best regards
igor

Re: ts_calibrate issue

wangvictor — Tue, 07 Nov 2017 03:30:53 GMT

igorpadykov

I've check that hardware is correct.(By using other OS system)

In console touch works perfectly by using ts_test but when I get in to wayland weston it will be wrong.

I think it is the issue of qtwayland.

I don't know what should I set in wayland.

Any suggestion?

Thanks in Advanced!