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  1. Qt
  2. QTBUG-119444

[REG 6.5.1 -> 6.5.2] QOpenGLWidget with QT_WIDGETS_HIGHDPI_DOWNSCALE uses nearest filter

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    • Linux/X11
    • a744d3082 (dev)

      The fix for QTBUG-115461 didn't fully fix the issue, it's still reproducible with QOpenGLWidget. I tried to patch Qt to force both QBackingStoreDefaultCompositor::createPerQuadData and QBackingStoreDefaultCompositor::updatePerQuadData to always use m_samplerLinear, the issue disappears then.

        For Gerrit Dashboard: QTBUG-119444
        # Subject Branch Project Status CR V
        523066,3 Use linear filtering with downscaling also with QOpenGLWidget dev qt/qtbase Status: MERGED +2 0
        523468,1 Use linear filtering with downscaling also with QOpenGLWidget 6.6 qt/qtbase Status: ABANDONED 0 0

            lagocs Laszlo Agocs
            ilya-fedin Ilya Fedin
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