Dear Maintainers,

When I lock the screen while an external display is connected, CPU usage
increases a lot by kwin_x11. After investigating, I found a KDE bug
report about
this issue. The bug was fixed in newer versions of QT. I applied the
specific patch
to Debian's qt6-base package and I can confirm that the fix works as
intended.
Can you please include the patch in trixie's QT 6 build?

Original KDE bug report: https://bugs.kde.org/show_bug.cgi?id=484323
QT patch: https://codereview.qt-project.org/c/qt/qtbase/+/663811

Thank you