Hang on first login

[David Balažic <xerces9@gmail.com>]

Hi!

After installing debian kbsd amd64, I rebooted and on the graphical
login screen I entered my login data.
A dialog appeared, that Power Manager is .... hanging or not
responding, I forgot the exact wording.
There were three button , the second was "Cancel", the third "Logout
Anyway" (???).
After a second I clicked Cancel.
Since then the same image is shown.
The login dialog (username/password) ghosted, the bar at the bottom.

This is my first contact with Debian after a decade, and the first with freebsd.

What to do next?

Regards,
David