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    Unsolved Memory overflow with QT 5.1X and Intel GPU graphic

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    • Norbert
      Norbert last edited by

      Hello everyone,

      We actually use QT 5.1X on Intel NUC with

      • Intel(R) Core(TM) i7-8559U CPU @ 2.70GHz

      • Intel(R) HD Graphics (Coffeelake 3x8 GT3)

      • OpenGL ES 3.2 Mesa 17.2.3

      The app display pictures using QML image: and QQuickImageProvider on 2 windows.
      We are currently experiencing a big problem of memory consumption.(All memory is consume)

      Has anyone ever encountered this problem with the Intel HD Graphics ?

      Your help is really welcome !
      Thanks !

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      • SGaist
        SGaist Lifetime Qt Champion last edited by

        Hi,

        Qt 5.1X is a bit vague, what exact version are you using ?
        Can you show the code you are using ?
        Did you try updating/downgrading your graphic card driver ?

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

        1 Reply Last reply Reply Quote 1
        • Norbert
          Norbert last edited by

          Hello, the versions :

          Version : QT 5.10.1-0-201802092256
          CentOS Linux release 7.5.1804
          OpenGL version string: 3.0 Mesa 17.2.3
          00:02.0 VGA compatible controller: Intel Corporation Device 3ea5 (rev 01)

          OpenGL and Intel GPU seems to be strongly linked.
          The intel driver goes with the Centos version.

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          • SGaist
            SGaist Lifetime Qt Champion last edited by

            Can you check whether you have the same phenomenon with a more recent version of Qt ? And if not, with an older one ?

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

            1 Reply Last reply Reply Quote 1
            • Norbert
              Norbert last edited by

              Hello,

              We have same problem with QT 5.8, Qt 5.11.0, QT5.11.1 in 2 screens and 2 windows

              With 1 screen and 1 windows not problem.

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              • SGaist
                SGaist Lifetime Qt Champion last edited by

                Is it not a problem or is the leak taking way longer to eat all the memory ?

                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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                • Norbert
                  Norbert last edited by

                  It is a big problem.
                  On2 screens only, each time a image is updated the memory is consume and not freed.
                  After 1 minutes 32 Go of mem are consume and after the swap and computer can not run.

                  1 Reply Last reply Reply Quote 0
                  • SGaist
                    SGaist Lifetime Qt Champion last edited by

                    What I meant was: is it really "not a problem" with only 1 screen and 1 window or is it just the memory leak that is way slower in that setup ?

                    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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                    • Norbert
                      Norbert last edited by

                      With only 1 screen and 1 windows we don't see memory leak.

                      1 Reply Last reply Reply Quote 0
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