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cannot connect to X server :0

  • Hi all,

    i am using qt 4.8 for my toradex board.
    issue is LCD screen gui wont work if i terminate QT demo during autorun.

    systemctl start qt4-x11-demo.service
    systemctl stop qt4-x11-demo.service

    my application works fine when i keep running QT demo in background.

    getting below error when i stop service

    cannot connect to X server :0

  • Lifetime Qt Champion


    Just a wild guess: your X server goes down when you stop the demo ?

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