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  1. Qt
  2. QTBUG-45071

Crash when resizing windows to more than 3840x2160

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.4.2
    • 5.4.0
    • QPA: X11/XCB
    • None
    • Ubuntu 14.04
    • f64b87a5df8870be138dbf3febad950e1fc4ed8c

    Description

      Easiest to reproduce with a dual monitor Xinerama setup with one 4K monitor: Using any widget-based application, try to resize the window to cover both screens.

      It crashes after a warning of the type "QXcbShmImage: shmget() failed (22) for size 35101960 (4159x2110)".

      The problem is that we are trying to allocate a backingstore that is bigger than the maximum shared memory size on Linux.

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            tvete Paul Olav Tvete
            tvete Paul Olav Tvete
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            Dates

              Created:
              Updated:
              Resolved:

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