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How to detect multi screen with eglfs?

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  • A Offline
    A Offline
    arkceajin
    wrote on last edited by
    #1
    OS: Ubuntu 18
    Qt: 5.15.1 GCC x64
    

    I tried

    qDebug()<<"screens"<<QGuiApplication::screens();
    

    xcb which shows:

    screens (QScreen(0x55ab206fba50, name="HDMI-0"), QScreen(0x55ab206fba90, name="DVI-D-0"))
    

    but on eglfs which shows:

    screens (QScreen(0x55c07f8308f0, name=""))
    

    backend used eglfs_x11, then I tired eglfs_kms_egldevice the app even cannot enter main function gaveCould not open DRM (NV) device

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    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi
      As far as i know, eglfs does not support multiple displays.
      https://forum.qt.io/topic/88111/imx6-multi-screen-use-eglfs

      A 1 Reply Last reply
      0
      • mrjjM mrjj

        Hi
        As far as i know, eglfs does not support multiple displays.
        https://forum.qt.io/topic/88111/imx6-multi-screen-use-eglfs

        A Offline
        A Offline
        arceajin
        wrote on last edited by
        #3
        This post is deleted!
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