I have to turn the touchscreen 90 ° in real time. With xinput I can turn the touch. But xrandr works only in normal position.
*xrandr --output default --rotation left xrandr: output default can not use rotation "left" reflection "none"*
*xrandr -o left X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 139 (RANDR) Minor opcode of failed request: 2 (RRSetScreenConfig) Serial number of failed request: 14 Current serial number in output stream: 14*
The application runs with Qt5, but without QML. QML would be a major change and I do not know if the imx6ull is suitable for it.
What options do I have there?