Hi Jared, On Mon, 01 Sep 2025 22:03:25 -0600 Jared Epp <[email protected]> wrote: > Source: kwin > Severity: normal > X-Debbugs-Cc: [email protected] > > Dear Maintainer, > > Since upgrading from Bookworm to Trixie, when I lock my screen, > kwin_x11 maxes out one CPU core. Most of the CPU usage goes to > kwin_x11 but some goes to Xorg and a little to ksmserver. > > I found this bug report upstream and it seems to be the same as my > issue https://bugs.kde.org/show_bug.cgi?id=484323 > > The workaround of using systemctl --user restart plasma- > kwin_x11.service (via ssh) after locking the screen was effective for > me, as well as going to System Settings > Display and Monitor > Compositor and unchecking Enable on Startup. > > It seems like the bug actually comes from Qt and was fixed here > https://codereview.qt-project.org/c/qt/qtbase/+/663811
You're right, the bug is actually in qt6-base and was reported here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1111957 I'll try to backport this to trixie. -- Med vänliga hälsningar Patrick Franz
