Additionally to this issue, according to adduser man said that: "You can't use special characters, must use only letters, numbers, points,etc, just like said standard IEEE 1003.1-2001. You only can add a "$" to end of username for samba accounts"
-- gdm does not accept special characters https://bugs.launchpad.net/bugs/439577 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