Comment # 2 on bug 1179629 from Maurizio Galli

(In reply to Fabian Vogt from comment #1)
> What's the output of "xauth list"? It should contain an entry with "#ffff#".

Right after fresh install:

mau@localhost:~> xauth list
localhost/unix:0  MIT-MAGIC-COOKIE-1  d56f411b012a955974a66232540e958e
mau@localhost:~>