I have the same issue. And this one is reproduced only when separated screen configured. And I see some activity on the second screen (TV) when pressing alt-tab.
-- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kde-workspace in Ubuntu. https://bugs.launchpad.net/bugs/881031 Title: Alt-tab works only some of the time when using dual screen with separate X window. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde-workspace/+bug/881031/+subscriptions -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
