Hello, I'm working on a project using yocto on an single board computer with a resistive touchscreen and I'm experiencing some trouble at the interaction between tslib and Qt. Touchscreen is working fine, so I can run ts_calibrate, ts_test, ts_print without problems. However, I noticed that when running a QtQuick-Application sometimes touch events are not being recognized. While running ts_print simultaneously with the Qt-App I've noticed that sometimes when I release the touchscreen ts_print is outputting a negative value for the x coordinate e. g.: 1519911645.587488: ??? -23??? 128??? 0 normally, the output releasing the touchscreen at this point it would look like that: 1519911642.989189: ??? 491??? 47 ?? 0 When this negative value is being output, my App doesn't recognize the touch event. I've attached a picture of the console output. There you can see this situation, after the -23 there is no output from Qt-App (pressing a button would output: qml: Button Pressed. Entered Text: Test-Text) Is there a form to prevent tslib outputting these negative values? I tried to use module skip, median, lowpass or iir in /etc/ts.conf but they are not present at the target. The contents of /usr/lib/ts/ are: drwxr-xr-x root?????? root???????????? 4096 ./usr/lib/ts -rwxr-xr-x root?????? root???????????? 5516 ./usr/lib/ts/dejitter.so -rwxr-xr-x root?????? root???????????? 5536 ./usr/lib/ts/dmc.so -rwxr-xr-x root?????? root???????????? 9636 ./usr/lib/ts/galax.so -rwxr-xr-x root?????? root???????????? 9632 ./usr/lib/ts/input.so -rwxr-xr-x root?????? root???????????? 5460 ./usr/lib/ts/linear_h2200.so -rwxr-xr-x root?????? root???????????? 9636 ./usr/lib/ts/linear.so -rwxr-xr-x root?????? root???????????? 5520 ./usr/lib/ts/pthres.so -rwxr-xr-x root?????? root???????????? 5460 ./usr/lib/ts/tatung.so -rwxr-xr-x root?????? root???????????? 5468 ./usr/lib/ts/touchkit.so -rwxr-xr-x root?????? root???????????? 5516 ./usr/lib/ts/variance.so How can the modules skip, median, lowpass, iir be added to the target in yocto? I tried passing --enable-skip to configure but it didn't recognize this option. Which are valid options? I would appreciate any help. -- Best regards Sebastian Gonzalez ____________________________________________ ROBERT RIELE GmbH & Co KG Kurfuerstenstr. 75-79, 13467 Berlin Germany Tel. +49-30-4000 97 10 Fax +49-30-404 05 29 S.Gonzalez at riele.de <mailto:S.Gonzalez at riele.de> www.riele.de <http://www.riele.de/> -------------- next part -------------- A non-text attachment was scrubbed... Name: Bildschirmfoto vom 2018-03-14 13-40-51.png Type: image/png Size: 79109 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/tslib/attachments/20180315/f8a407ce/attachment.png>
