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  1. Qt
  2. QTBUG-79546

QWebEngineView and high DPI scaling cause rendering issues on Mac

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    Details

    • Type: Bug
    • Status: Need More Info
    • Priority: P1: Critical
    • Resolution: Incomplete
    • Affects Version/s: 5.12.5, 5.13.1
    • Fix Version/s: None
    • Component/s: WebEngine, WebView
    • Labels:
      None
    • Environment:
      Mac OS X 10.15 Catalina + Xcode 11 + Qt 5.13.1
    • Platform/s:
      macOS

      Description

       
      QWebEngineView causes major rendering issues on Mac when used with high DPI scaling enabled.

      After launching the app it looks like only a part of the window is occupied by controls and the rest of it is blank (see the image above).

      Once resized, it occupies the whole window area, but everything becomes blurry (see the image below):

       

      A small sample project to reproduce the issue has been attached.

       

        Attachments

        1. highdpiissue.jpg
          highdpiissue.jpg
          11 kB
        2. highdpiresized.jpg
          highdpiresized.jpg
          13 kB
        3. test.zip
          3 kB
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          Activity

            People

            Assignee:
            qt_webengine_team Qt WebEngine Team
            Reporter:
            mentalmushroom Pugach Yaroslav
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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