I'm going to go ahead and close this bug I reported since I'm not having problems anymore. If anyone still has this problem, feel free to reopen it.
** Changed in: kdebase (Ubuntu) Status: Confirmed => Rejected -- closing a window causes kwin to sigsegv https://launchpad.net/bugs/57782 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs