Created attachment 140284 [details] Screenshot of the bug Windows appear detached from their titlebars in Present Windows and Desktop Grid. Plus they have a shadow which seems to be not in the right place. Screenshot attached. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.22.80 KDE Frameworks Version: 5.85.0 Qt Version: 5.15.3 ADDITIONAL INFORMATION I'm using the Plasma Wayland session.
Can confirm that this started happening within the last month or so. X11 and Wayland are affected.
Git commit 4912c7cfa2e54c2f5ad491f868aaae43135ca172 by Vlad Zahorodnii. Committed on 11/08/2021 at 16:43. Pushed by vladz into branch 'master'. scenes/opengl: Calculate item transforms differently Currently, a vertex coordinate is transformed first, then mapped to the global screen coordinates. This causes a problem if a transform is applied to the top-most item and child items are not at (0, 0). For example, scaled windows may have popping out sub-surfaces, etc. With this change, the item transforms will be computed differently. For example, if the parent item is transformed, a child's transform will look as follows [Parent's translation][Parent's transform][Child's translation] instead of [Parent's translation][Child's translation][Parent's transform] In the future, I'd like to get rid of the Item::setTransform() call in OpenGLWindow::performPaint() and have either AnimationEffect or libkwineffects call Item::setTransform(). M +10 -0 src/item.cpp M +4 -0 src/item.h M +43 -32 src/plugins/scenes/opengl/scene_opengl.cpp M +1 -1 src/plugins/scenes/opengl/scene_opengl.h https://invent.kde.org/plasma/kwin/commit/4912c7cfa2e54c2f5ad491f868aaae43135ca172
nice ! this also fixed "firefox wayland" "window opening" when using the "scale effect". ( it used to look like the window was divided into 4 parts all growing )