gnome, no login/unlog after standby/sleep

have a envrypted disk setup on this notebook, during install resized swap for standby (default, via checkbox)
closing the notebook and open it brings me to some screen, pressing a key shows som arrow up animations,
but I do not come to the login/unlock mask to log in again?
why, what can I do?

it is possible that this problem is solved,
I had the dropdown terminal exertions installed,but it complained that some typlib-vte was missing, since I installed this I did not had this again, will see how this will behaves in future