If this is the same bug (I am 99% sure it is...), deleting your .kde amd .kde4 folders from your home directory fixes it (and removes all of your settings!).
I've had this bug on three different computers. I don't know if there is a connection, but in all three cases, I had created a second panel along the top of the screen. -- plasma crashed with SIGSEGV in QGraphicsLinearLayout::insertItem() https://bugs.launchpad.net/bugs/262728 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kdebase-workspace in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs