After uninstalling mutter and reinstalling ubuntu-gnome-desktop, the problem was resolved. may be it was a invalid configuration, may be it was never a bug.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1508146 Title: alt + left/right arrows switch between tty consoles, cannot disable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1508146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
