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  1. Qt WebBrowser
  2. QTWB-81

QTWebEngine hangs when used in a Windows application; when switching the OS User

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Not Evaluated Not Evaluated
    • None
    • 1.0
    • General
    • None
    • ASUS TUF Laptop, Windows 10 x64, Calibre 8.7
    • Windows

      Originally, this has been observed in Calibre, here is the bug report made there and we were told this is not something Calibre can fix because it is a problem with QTWebEngine.

      https://bugs.launchpad.net/calibre/+bug/2120258

       

      Summary

      When a window with QTWebEngine is spawned and minimized, IF you switch the user on Windows and return back to the program, the window hangs. Screenshot also attached:

      https://x0.at/ZIr7.png

       

      This is reproducible. It has been observed on version 8.7 of calibre on Windows 10 x64.

       

      1. Run calibre. (to open the library view)
      2. Open a book (so the viewer spawns [it uses QTWebEngine to render]
      3. Keep viewer window open or minimize it.
      4. Switch user on Windows to another user.
      5. Return back to original user.
      6. Restore/look at viewer window. It is now frozen/hangs.
      7. It must be killed to work again.

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            qt_webengine_team Qt WebEngine Team
            thomwalker Thom Walker
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