Created attachment 182187 [details] Maximize blur flicker SUMMARY Maximizing a window with blur while the maximize effect is enabled make the blur flicker for a split second after the maximization animation ends. STEPS TO REPRODUCE 1. Enable Blur and Maximize effects in Window Effects 2. Open a window that applies blur to its background (e.g. a terminal emulator) 3. Observe the state of the blur effect once the animation ends OBSERVED RESULT Blur flickers/disappears for a short moment before returning back to normal EXPECTED RESULT Blur effect stays intact SOFTWARE/OS VERSIONS Arch Linux with kernel 6.15.1 KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.0 ADDITIONAL INFORMATION GPU: AMD Radeon HD 7560D Drivers: Mesa 25.1.3, kernel radeon driver
Can reproduce.
This bug was briefly fixed in plasma 6.4 and it's beta, but returned in 6.4.1.
Git commit 98bd108f093fce3677a8fd4fbf8521c4fc9e9d5d by Marcin Woźniak. Committed on 11/08/2025 at 10:46. Pushed by zamundaaa into branch 'master'. plugins/maximize: ensure all animations end on the same frame Otherwise WindowForceBlurRole is removed too early, causing blur to disappear for a frame. M +3 -0 src/plugins/maximize/package/contents/code/main.js https://invent.kde.org/plasma/kwin/-/commit/98bd108f093fce3677a8fd4fbf8521c4fc9e9d5d
Git commit 7f31762ba58c6676602e219af417bc96cb0fabd0 by Xaver Hugl. Committed on 11/08/2025 at 11:40. Pushed by zamundaaa into branch 'Plasma/6.4'. plugins/maximize: ensure all animations end on the same frame Otherwise WindowForceBlurRole is removed too early, causing blur to disappear for a frame. (cherry picked from commit 98bd108f093fce3677a8fd4fbf8521c4fc9e9d5d) Co-authored-by: Marcin Woźniak <m@rcin.dev> M +3 -0 src/plugins/maximize/package/contents/code/main.js https://invent.kde.org/plasma/kwin/-/commit/7f31762ba58c6676602e219af417bc96cb0fabd0
Can you check, if this solved #474196 too? This seems to appear at every animation.
No, bug 474196 is different.
*** Bug 460905 has been marked as a duplicate of this bug. ***