I can confirm the same problem with a "Generic 105-key (Intl) PC" Keyboard model setting and "USA" and "Germany Eliminate dead keys" as the two configured keyboard layouts (using both shift keys as switching- trigger).
The interesting thing i observed is that after removing the German keyboard layout and re-adding it again. The keyboard switching behaviour is immediately returned to its original proper functionality and there is no sign of a 3rd ?/(null) layout entry ... After an unidentified period of general desktop usage the rogue 3rd layout crops up again. -- Keyboard indicator shows additional layout "null" https://bugs.launchpad.net/bugs/283128 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs