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  1. Qt
  2. QTBUG-104443

xcb plugin crashes when running in vnc

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 6.4.0 RC1, 6.5.0 Beta1
    • 6.3.0, 6.3.1, 6.4.0 Beta1
    • QPA: X11/XCB
    • None
    • Linux/X11
    • 03e76ac23d (qt/qtbase/dev) 03e76ac23d (qt/tqtc-qtbase/dev) 1b3dbd24c0 (qt/qtbase/6.3) 1b3dbd24c0 (qt/tqtc-qtbase/6.3) 91cb059e3d (qt/qtbase/6.4) 91cb059e3d (qt/tqtc-qtbase/6.4)

    Description

      The change introduced in 9a4c98e55659b32db984612e6247ac193812a502 does not initialize m_cursor in the secondary constructor. It contains garbage in case of QXcbScreen::setMonitor returning early (!monitorInfo), which seems to happen when running in VNC (e.g. raspberry pi).

      This will crash applications as soon as the QPlatformCursor is accessed (usually pretty quick).

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            njeisecke Nils Jeisecke
            njeisecke Nils Jeisecke
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            Dates

              Created:
              Updated:
              Resolved:

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