Qt5 - vsync problems (tearing)



  • Hi,

    The vsync problems in Qt 5 Alpha are still there. I am using the eglfs plugin on an i.MX board.
    Although the performance is ok, tearing is visible. The new threading model of scenegraph was supposed to fix this, wasn't it?

    Is this maybe a eglfs plugin problem?

    Best regards



  • this is most likely plugin related. Ask on qt irc or mailing list, people from qt graphics team are very helpful in getting these things resolved.



  • I don't know if it solve your problem too
    But it looks like on mali400 eglSwapInterval(egl_display, 1);
    must be after eglMakeCurrent call

    I simply set up eglSwapInterval in
    qtbase/src/platformsupport/eglconvenience/qeglplatformcontext.cpp

    and all works fine


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