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  1. Qt
  2. QTBUG-66452

QT_QUICK_BACKEND=software: QBackingStore::endPaint() warnings on Windows using Qt 5.10.1

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.9.6, 5.11.0 Alpha
    • 5.9.6, 5.10.1
    • QPA: Windows
    • None
    • Windows 7,10 Qt 5.10.1
    • 047f161b1a706e81034ccd8d4700a3126c16dfe4 (qtdeclarative/5.11., 19.2.2018, 5.11), 047e3f480e9ebed55b21025f19ed7ed7351df118 (qtdeclarative/5.9, 8.5.2018, 5.9.6)

    Description

      After upgrading to Qt 5.10.1, the project I'm involved in gets a continuous stream of warnings when running. The warning is of type:

      QBackingStore::endPaint() called with active painter on backingstore paint device

      We are not using QBackingStore in the project.

      Any thoughts of what can cause these warnings?

      One thing to note is that these warnings do not show up when running on a Mac using Qt 5.101.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-65975 tst_qquickiconimage 3 functions fail with QT_QUICK_BACKEND=software

          • P0: Blocker - MUST be fixed ASAP. This includes issues that prevent/block further Qt development; Legal issues & Serious data loss issues.
          • Closed
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              kleint Friedemann Kleint
              johan_t Johan Telenius
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                Created:
                Updated:
                Resolved:

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