https://bugs.kde.org/show_bug.cgi?id=486401

Kai Uwe Broulik <k...@privat.broulik.de> changed:

           What    |Removed                     |Added
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                 CC|                            |k...@privat.broulik.de
     Ever confirmed|0                           |1
             Status|REPORTED                    |CONFIRMED

--- Comment #1 from Kai Uwe Broulik <k...@privat.broulik.de> ---
I can reproduce a rubberband effect under Wayland, when run as X application it
instead just drops the frames. Wonder if that is an issue with kdiff’s
painting.

Fwiw I made a patch for Qt Wayland to implement backingstore scrolling, so it
only has to repaint a small region as you scroll, which should improve
performance (when not using fractional scaling) albeit not entirely:
https://codereview.qt-project.org/c/qt/qtwayland/+/528803

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