Comment # 3 on bug 1200140 from Fabian Vogt

(In reply to Episteme PROMENEUR from comment #2)
> Yesterday i enabled secure boot.
> 
> Could it be related ?

Highly unlikely.

Can you attach the journal?

Does kscreenlocker_greet --testing work? (run rpm -ql kscreenlocker5 to get its
location)