I have just done a complete reinstall of my system, and now the laggy Plasma issue is gone. However, in Dolphin, the file selection backgrounds in the main pane remain laggy for 1-2 minutes after dolphin has been started. After that, they become smooth again. The other mouse-over effects (in the Folders and Places boxes) are always smooth.
-- [karmic] Some KDE graphics operations have suddenly become very laggy https://bugs.launchpad.net/bugs/380553 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs