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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.14.2, 5.15.0 Beta2
Affects Version/s: 5.12.5, 5.13.1
Component/s: GUI: High-DPI
Labels:
None
Environment:
Linux/X11

Platform/s:

Linux/X11
Commits:
08d5059320334223ff1f9009342324f25c231f0b (qt/qtbase/5.14)

Description

Native children of top-level window has incorrect position after setting its geometry when scaling factor greater than 1.0 on secondary screen (e.g. screen top-left is 3840x0).

Steps to reproduce: run the attached software with DPR of 2.0 on second screen with geometry of 3840,0,3840x2160. After a second the red rectangle will disappear (it will have negative top-left position). After applying the patch the red rectangle is still visible after changing its geometry (after a second).

The problem exists since https://codereview.qt-http://example.comproject.org/c/qt/qtbase/+/251797

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qtbug79166_log.txt
2 kB
14 Oct '19 09:45
qtbug79166.zip
2 kB
14 Oct '19 11:48
QTBUG-79166-native-window.zip
1 kB
11 Oct '19 21:05
qtbug79166-widgets.zip
2 kB
14 Oct '19 18:12
qtbug7966-widgets.log
1 kB
14 Oct '19 18:12

Issue Links

relates to

QTBUG-78158 Opening a window on a secondary display that has different resolution/DPI behaves oddly with QT_USE_NATIVE_WINDOWS=1

Closed

QTBUG-82312 QScrollArea is broken in high DPI environments (when calling winId() on QScrollArea's widget)

Closed

QTBUG-79861 When a widget that has a native window handle is inside another widget then the mouse events are offset when started on a secondary display