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  1. Qt
  2. QTBUG-77142

MultiPointTouchArea does not update pressure unless x,y is changed

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    • Linux/Other display system
    • 1b0c45f683cef20aacc8f40273aa89200e9924e4 217dd1b3b03cd40b4bb926631464c684f7f84a69 bc35941dbbf6cbd09805a2217ecb062c565855ad ee9bc61cd906505271bad887664c15b9397906ab (qtbase); ae346195efaca5d01b67c5df1209512c7edaddb0 (qtdeclarative)

      When using a MultiPointTouchArea on a display that supports pressure there are no updates to pressure property of the TouchPoint unless the x/y value is also changed.

      Expected: Pressure can be updated independently of position.

       

      Attachments: 

      kernal-touch-log.txt: output of linux touch driver

      qmlscene-log.txt: output of events from included multi.qml which tests MultiPointTouchArea

      multi.qml: Sample QML file that can be ran with qmlscene to observe the issue. 

        1. qtbug77142.tgz
          5 kB
        2. qmlscene-log-with-workaround.txt
          3 kB
        3. qmlscene-log-Without-move+patches(271481_275093_275094_275096).txt
          6 kB
        4. qmlscene-log-With-move+patches(271481_275093_275094_275096).txt
          17 kB
        5. qmlscene-log-with-271481.txt
          0.1 kB
        6. qmlscene-log-trial-2.txt
          3 kB
        7. qmlscene-log+patches(271481_275093_275094_275096_276084_276087).txt
          35 kB
        8. qmlscene-log+NoCompression+patches(271481_275093_275094_275096_276084_276087).txt
          9 kB
        9. qmlscene-log.txt
          0.2 kB
        10. pressuretest.qml
          5 kB
        11. multi.qml
          1.0 kB
        12. kernel-touch-log-with-workaround.txt
          7 kB
        13. kernel-touch-log-with-271481.txt
          5 kB
        14. kernel-touch-log-trial-2.txt
          8 kB
        15. kernel-touch-log.txt
          2 kB
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            srutledg Shawn Rutledge
            thomasvictor Thomas Victor
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              Created:
              Updated:
              Resolved: