i.MX ProcessorsのトピックRe: Qt touch inverted

Qt touch inverted

contra — Thu, 20 Mar 2014 12:07:01 GMT

Hi, I have LTIB building Linux and Qt 4.6.0 for i.MX28 EVK. When running the demos the x and y for the touchscreen are reversed. When I move my finger up and down it moves the cursor left and right. I have calibrated the touchscreen in TSLIB and it works fine when running ts_test.

Can anyone help to fix this in Qt?

Re: Qt touch inverted

edison_fernande — Thu, 20 Mar 2014 21:00:09 GMT

Hi David,

Are you using the QWS_MOUSE_PROTO variable? Something like:

export QWS_MOUSE_PROTO=tslib:/dev/input/event1

You can also make sure your TS is correctly calibrated by doing:

export TSLIB_TSDEVICE=/dev/input/event1

export TSLIB_CONFFILE=/etc/ts.conf

export TSLIB_CALIBFILE=/etc/pointercal

export QWS_MOUSE_PROTO=tslib:/dev/input/event1

just make sure event1 is your TS.

Then run ts_calibrate:

ts_calibrate

And make sure the /etc/pointercal file was created. After this just run your Qt application.

Regards,

Edison

Re: Qt touch inverted

contra — Mon, 24 Mar 2014 11:04:23 GMT

Hi Edison, thank you the following line fixed my problem.

export QWS_MOUSE_PROTO=tslib:/dev/input/event1