On Sat, 18 Aug 2018 10:48:19 +0200
Thierry de Coulon <tcoulon@...> wrote:

> b) Tried to switch user: login failed, whatever password I give (name is shown 
> as "dödö", maybe that's a clue for someone)

Well, that part looks like a classic codepage hiccup--what's the system locale?

E. Liddell