I just rechecked and finally saw the bottom of your log. It seems you are missing some dev packages, there's no linuxfb/egl etc. plugin created.

@SGaist Thanks. I'll give it a look.

What do you have where the syntax error occurs ?

Solved

add to .pro :
CONFIG += plugin static
QTPLUGIN += qtslib qevdevkeyboard qevdevmouse qevdevtablet qevdevtouch

Run (active all input device):
$./test -plugin tslib -plugin evdevmouse -plugin evdevkeyboard

:-)

Static Plugin

Hm. You would have to ask Qt developers (on IRC, or development mailing list) to get a definite answer. In Qt4->5 transition, the whole painting architecture was changed, so it is understandable there are differences in performance. What is not so good is that (from your data, and sporadic reports I see in other places) the performance of Qt5 is worse instead of better.

@jsulm , Unable to understand your suggestion. Sorry, for not getting you.

then how to do this ? Create a build folder, go to this folder and call configure from there. How to change configure command ?

odroid@odroid:~/installQt/qtbase-everywhere-src-5.12.8$ ./configure -opensource -confirm-license -prefix /usr/local/Qt-5.12.8-aarch-little-endian -no-pch -xplatform qws/linux-aarch-gnu-g++

If you build folder, how you write above commond ?