why tslib not working in pyqt5 application?

[sanluku]

I can calibrate my touch screen with tslib, and generate pointercal.
And i export like this:
export TSLIB_TSDEVICE=/dev/input/event4
export TSLIB_CONFFILE=/etc/ts.conf
export TSLIB_CALIBFILE=/etc/pointercal

export QT_QPA_EGLFS_TSLIB=1
export QT_QPA_FB_TSLIB=1
export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/event4:rotate=0
export QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/plugins
export QT_QPA_PLATFORM=linuxfb:tty=/dev/fb0
export QT_QPA_GENERIC_PLUGINS=tslib:/dev/input/event4

but in my application, it's still not calibrate, it seems calibrate file didn't work.
Did i do something wrong?

[merge]

how does your /etc/ts.conf file look like?

[sanluku]

I didn't make any change.
It's look like:

module_raw input
module pthres pmin=1
module dejitter delta=100
module linear

[merge]

since qt5 itself only supports the old single-touch api anyways, I suggest running ts_uinput as a daemon, and don't use anything tslib-specific for Qt5, but only configure qt5 to use the input device that ts_uinput creates. That way you become independent from what Qt supports and get multitouch support, with tslib's calibration.