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     User Story User Story
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    Resolution: Done
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    P2: Important 
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    None
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    None
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        c91d1fdc100cda88b94217153def52ab7fe63d21
It is an obosolete tech. that was replaced by Xrandr. There are several unanswered questions regarding Xinerama in QTBUG-40429. Also that code path is not maintained and contains bugs such as described in https://codereview.qt-project.org/#/c/243653/1//COMMIT_MSG (can be tested when running Qt application with QT_XCB_NO_XRANDR=1). 
See also https://codereview.qt-project.org/c/qt/qtbase/+/256112
- depends on
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                    QTBUG-65457 Improper handling of TILED displays (4K / 5K / 8K etc.) / support for RandR v1.5 -         
- Closed
 
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- relates to
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                     QTBUG-69411
        XCB Plugin Changes in Qt 6 QTBUG-69411
        XCB Plugin Changes in Qt 6-         
- Closed
 
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