[meta-freescale] How to calibrate touch screen?

Philippe Mangaud Philippe.Mangaud at freescale.com
Wed Nov 20 02:25:44 PST 2013


Remember we had to add manually an /etc/ts.conf with following parameter for the libts :
module pthres pmin=1
module variance delta=30
module dejitter delta=100
module linear

My 2 cents, Philippe.

-----Original Message-----
From: Wilhelm Pflüger [mailto:wpflueger.dev at gmail.com] 
Sent: Tuesday, November 19, 2013 6:04 PM
To: Marco Cavallini; meta-freescale at yoctoproject.org
Subject: Re: [meta-freescale] How to calibrate touch screen?

I added tslib and ts_calibrate to the IMAGE_INSTALL in qte-in-use-image.bbappend. But after ts_calibrate the pointer is still out of sync.
Content of /etc/pointercal is
2053 -15 192576 3 1526 114976 65536 1024 768

Has someone an idea what I do wrong?

2013/11/19 Marco <koansoftware at gmail.com>:
> Il 19/11/2013 15:40, Wilhelm Pflüger ha scritto:
>
>> I have build qte-in-use-image for target imx6qsabresd. Now I wonder 
>> how to calibrate touch screen. I can run 
>> /usr/bin/qtopia/examples/qws/mousecalibration/mousecalibration -qws
>>
>> but if I test the result it is not satisfactory - cursor jumps as if 
>> I had an 4" screen instead of the 10". So - how can I adapt the touch 
>> parameters?
>>
>> Wilhelm Pflüger
>
>
>
> Hi,
> IIRC you must use ts_calibrate
>
>
> Cordiali Saluti / Kindest Regards / Mit freundlichen Grüßen
> --
> Marco Cavallini | KOAN sas | Bergamo - Italia  embedded and real-time 
> software engineering
> Phone:+39-035-255.235 - Fax:+39-178-22.39.748
>       http://www.KoanSoftware.com
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