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stop/start /dev/fb0 usage

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  • R Offline
    R Offline
    ranshalit
    wrote on last edited by
    #1

    Hello,

    I would like to ask if there is some way I can turn on/off grahics (/dev/fb0) in qtapplication, in such a way that the application will still be alive, although no graphic will be shown.
    If such a feature exist it will help me a lot.

    Regards,
    Ran

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Do you mean stop the GUI rendering or just have the screen black ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • J Offline
        J Offline
        Jeff Andle
        wrote on last edited by
        #3

        not to hijack a topic, but... well ok exactly that... I'd like to release fb0 before closing my app (potentially in a KILL signal handler). The rest of the system is character based and wants stdout to print characters to the screen when I am not running the GUI app.

        It would also be nice to release the frame buffer if an app was idle.

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