Two cursors occurs, with qt5.15.2 eglfs

Eric-zhuqiang

I built qt15.5.2 on jetson-nano with opengl es2. I run a qml application, it works well on PC, but occurs problem on jetson-nano. the flag QT_QPA_PALTFORM=eglfs was set, the application runs with a bash script like this:

export QT_ROOT=...
export QT_QPA_PLATFORM_PLUGIN_PATH=...
....
./qmltest

When I execute this script with normal permissions, only one mouse will be displayed, but there is no mouse event.
When I execute this script with sudo permission, two mice will be displayed, but the mouse event is normal. I guess one is X11 mouse and the other is QT mouse

SGaist

Hi and welcome to devnet,

Are you trying to run your application with the eglfs backend at the same time as the X server is running ?

Eric-zhuqiang

yes, and now, I build with xcb and run with xcb backend. It works well...

SGaist

That's normal. You had two applications fighting for the same resources (your application and the X server).