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  1. Qt
  2. QTBUG-52397

WebEngine may fail to create context for a view if many are open already

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Out of scope
    • Affects Version/s: 5.6.0, 5.6.1, 5.7.0
    • Fix Version/s: None
    • Component/s: WebEngine
    • Environment:
      Windows 7 & MSVC 2013 with 32bit application

      Description

      Should be reproducible on at least some machines with WebEngine Demo Browser example. Attached qtdiag output is from a machine where this happens at around 11 tabs.

      To reproduce:

      • Run WebEngine Demo Browser example
      • Open a lot of websites

      What could happen:

      • page is not rendered, but seems to work otherwise and this is printed to application output:
        ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x500)
        for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 24,
        redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
        stencilBufferSize 8, samples 0, swapBehavior 0, swapInterval 1, profile 0),
        shared context: 0x20001 ()
        
        GDI::createContext: wglShareLists() failed. ()
        
        ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0)
        for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 24,
        redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
        stencilBufferSize 8, samples 0, swapBehavior 0, swapInterval 1, profile 0),
        shared context: 0x20001 ()
        
        GDI::createContext: wglShareLists() failed. ()
        

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              Assignee:
              qt_webengine_team Qt WebEngine Team
              Reporter:
              poikelin Joni Poikelin
              Votes:
              5 Vote for this issue
              Watchers:
              12 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

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