Hi everybody Smile,
my problem is that when I connect to my Desktop using my user name and password the GUI starts but after 2 seconds my computer restarts asking to provide the login information again.
the same problem when I start using the safe mode.
anybody can help please ?
Thanks in advance 
What has changed? Have you installed anything recently? Changed anything in your config?
That’ll be a start. There’s plenty of people here who’ll be willing to help, but they’ll need more info.
Does the entire computer restart or just the username/password prompt?
Because if you enter the wrong password and/or username it will prompt you to enter it again.