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libEGL warning: DRI2: failed to authenticate raspberry pi



  • Hi,

    I have always below error in Rapsberry pi 3B+ Qt10.0 compiled simple gui app.

    any solution for this ?

    PS : I added user pi to video group etc. but problem still there..

    QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
    libEGL warning: DRI2: failed to authenticate
    Unable to query physical screen size, defaulting to 100 dpi.
    To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters)
    

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