I've said
my keyboard starts with QZERTY, I've chosen US standard, and now recognizes all characters as before...
QZERTY is not US, is old italian typewriter standardI rebooted and now all is messed up...no character correspondence at all, I'm writing from my old win desktop :( and more, seem that I've lost 'a' and 'tab', so I can't do dpkg-reconfigure console-data
now I'm reinstalling linux...