Hello, I'm running Qt on eglfs on an embedded ARM board and I'm trying to use a touch screen. Mouse and keyboard seem to work properly, I can also see events from the touch screen, but the axes seem to be rotated.
I checked and it seems that my installation is using libinput. I read the guide here http://doc.qt.io/qt-5/embedded-linux.html, which provides a way to rotate the axes when using evdev. I therefore tried to use evdev by using QT_QPA_EGLFS_NO_LIBINPUT, but in that case I get no touch event at all in a MouseArea, even though it seems the touch screen is recognised properly: https://pastebin.com/uf5BBYKc. evtest is providing the events properly instead. Any idea why I'm getting no event in Qt from evdev? Is it possible to somehow rotate the axes from libinput? I found a few guides about it, but those seem to refer to X11, while I'm using eglfs. Thank you for any info. Luca
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