Dear Maintainer,

When I leave my system for a longer time with locked KDE session, the kde
login screen freezes. The clock displays the time, in which I tried to
unlock it, but does not update any more (it displays the same time forever).
The mouse pointer moves normally, but the password field does not
get the input focus, so I can't enter the password. It is also not possible
to press the "log in" button. The fingerprint scanner also does not unlock
the session.
When I switch to text console with e.g. CTRL+ALT+F1, I can log in (both with
the password and with the fingerprint scanner). I can also start another
X windows session from that console, so that's rather not a hardware related
problem.

With best regards,
Wojtek