Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.6.2, 6.8
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None
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97b9b165c (dev), 0617262d8 (6.7), 63102ae3b (6.6)
Description
I've got it with Qt 6.6.2 on Rocky Linux 8.9 to be precise. It looks like the application is rendered at 100% scaling while the system has 200% scaling, the window accepts input coordinates scaled twice relative to the actual window size (i.e. it's rendered as 100% but input events are still 200%), the content updates partially (at least with widgets, not sure about qml) and this should be reproducible with any Qt example. If I set QT_WAYLAND_DISABLED_INTERFACES=wp_viewporter, the bug disappears. My guess the bug is caused by the lack of setting buffer scale when viewporter is active.