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  1. Qt
  2. QTBUG-66928

Wayland QPA: Buffers with old dimensions are committed after an ack_configure

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.12.0 Alpha
    • 5.9.4, 5.10.1, 5.11.0 Beta 1
    • QPA: Wayland
    • None
    • xdg-shell unstable v5 (eventually v6 when maximize/fullscreen is implemented).

    Description

      Only xdg_shell has ack_configure, so wl_shell and ivi_application are not affected.

      xdg-shell v6 is currently unaffected, since maximize/fullscreen is not implemented. Had it been implemented we would have faced the same issue.

      On some compositors, this causes a protocol error (terminates the application).

      Steps to reproduce:

      1. Start a Qt application with QT_WAYLAND_SHELL_INTEGRATION=xdg-shell-v5 set
      2. Toggle fullscreen

      Some compositors will report a protocol errors, on others, you can observe the logs with WAYLAND_DEBUG=1 set and see that old buffers are committed after ack_configure.

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            johanhelsing Johan Helsing
            johanhelsing Johan Helsing
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            Dates

              Created:
              Updated:
              Resolved:

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