setting the EGLFS environment variables on the Raspberry Pi 3



  • Hi everyone,

    I have been looking very long on how to set the QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT variables on RPI3. I googled and tried to export them on my Pi, but nothing happens when I try to run my application,it runs in full screen and I get the following warnings:

    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)
    

    it is mentioned here that EGLFS forces the first top-level window (be it either a QWidget or a QQuickView) to become fullscreen. To override this we have to use these environment variables.

    I cross compiled QT 5.7.1 for raspberry pi 3 and I am using it. Please any help to set these variables correctly is appreciated.

    Thanks


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.