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  1. Qt
  2. QTBUG-46415

qquickviewcomparison example crashes when using EGL and Mesa (Intel)

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    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.5.0 RC
    • 5.5.0 Beta
    • Quick: Widget
    • None

    Description

      We are using surfaceless contexts for QOffscreenSurface on EGL , when available (new in 5.5), and so calling OpenGL functions relying on the draw/read framebuffer with FBO 0 bound is undefined behavior. (in case of Mesa glViewport is apparently such a function, at least when running on Intel)

      This means anything using text rendering in a QQuickWidget may potentially crash when using EGL, depending on the drivers.

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          Bug - A problem which impairs or prevents the functions of the product. QTBUG-44654 Issues to be fixed before Qt 5.5 RC

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
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              lagocs Laszlo Agocs
              lagocs Laszlo Agocs
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                Created:
                Updated:
                Resolved:

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