Hello, my fault, I was not receiving all fields from shibboleth. Here a longer explanation:
http://aggroworld.org/2015/10/19/gitlab-and-shibboleth/ Ciao Cristiano -- You received this message because you are subscribed to the Google Groups "GitLab" group. To unsubscribe from this group and stop receiving emails from it, send an email to gitlabhq+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/gitlabhq/c143fd4e-e36d-4120-86bf-58d8c6225e8f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.