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  1. Qt
  2. QTBUG-102781

QtQuick limited to 30fps on external display

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P2: Important
    • None
    • 6.3.0
    • Quick: 2D Renderer
    • None
    • macOS

    Description

      Running a QML application on my external 4K display seems capped at 30fps. Moving the window to the built-in display of the MacBook Pro allows it to render with 60fps. I've attached a minimal example.

      Machine: MacBook Pro 16" (M1Pro)

      Qt Version: 6.3.0

      `QScreen::refreshRate()` reports 60

      Other Apps run much more smooth. I also tested a local SwiftUI app and it also runs at 60fps.

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            janichol Andy Nichols
            marcel.gotsch Marcel Gotsch
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            Dates

              Created:
              Updated:
              Resolved:

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