Launching GUI application on different X11 display

[wysota]

I never had any problems running Qt applications over ssh. I doubt the error is caused by the fact you are using a different display.

[basy]

It looks like QT BUG, because when I use QLabel, i can run this application over ssh without fail..

MainWindow::MainWindow() : QMainWindow(){
  setCentralWidget(new QLabel("OK"));
}

MainWindow::MainWindow() : QMainWindow(){
  setCentralWidget(new QLabel("OK"));
}

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Also when i ssh myself: ssh -X me@my_ip i can run app without problems, but this is not solution because i need to run my app using cron...

Application fail when i use QTableWidget too...

Maybe i have to use QX11EmbedWidget or add some display config code in main(...) method.

Any ideas ?

[wysota]

The thing is Qt has nothing to do with display settings. It's just an address of the X Server XLib connects to, the rest is a matter of where X calls go so I'd look for trouble in configuration of your system(s) and not Qt itself.