I'm having the same problem. X is constantly crashing (as in, the screen freezes and takes no keyboard or mouse input), and the last time it crashed and I restarted, I found that the "switch applications" setting had been disabled. I opened up "System settings" -> "Keyboard" and set it again to "alt-tab" and now it's working again. This is the first time this particular bug has happened to me.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/963125 Title: Alt-Tab window switcher lost To manage notifications about this bug go to: https://bugs.launchpad.net/unity-2d/+bug/963125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs