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  1. Qt
  2. QTBUG-35926

Windows: Getting debug console error message when using task manager

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Details

    • Bug
    • Resolution: Done
    • P4: Low
    • 5.3.0
    • 5.2.0
    • GUI: Window management
    • None
    • Windows 7 Prof. 64, VS2012, Qt5.2.0/x64/ANGLE, AMD Radeon HD 5700 Series, current catalyst drivers, resolution 1920x1200 at 32bit, AMD FX8350 (Octacore) CPU
    • 1cf5cd34f70bd04dd9d1850b2fdd4a99d7ba5919 (dev, 15.1.2014, 5.3)

    Description

      When running my Qt applications I sometimes get the following message in den debug console:

      [C] unknown:0
      QWindowsBackingStore::flush: BitBlt failed ()

      Nothing more happens. The application keeps running without problem. Still this is a pretty strange... especially since I would expect any kind of detailed error message in the trailing empty parantheses.

      I found that I can reproduce this by activating the application's window, then pressing <Ctrl+Alt+Del>, then pressing <Esc>.

      I suppose this issue is connected to https://bugreports.qt-project.org/browse/QTBUG-29716 but I do NOT need to use 16bit screen depth and I also do NOT get a crash and I do never get any kind of error message in the parantheses.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-29716 Qt5 Application Freezes if left for some time and if windows color depth is 16bit

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              kleint Friedemann Kleint
              silicomancer Bernhard Lindner
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              Dates

                Created:
                Updated:
                Resolved:

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