It seems like I am not the first who is reporting issues with the usage of a fingerprint reader in OpenSuse.
Unlocking screen - unlocking failed. - Page 3 - openSUSE Forums is a topic which describes the issues of USING one. In one of my laptops, I tend to use an integrated fingerprint reader.
While using it, the login screen is totally misplaced and unlocking a locked session is not possible anymore. Turning it of makes the system jump into the fountain of youth and return to a state of pleasure.
Is this a general issue in OpenSuse and does a Bug-Report need to be issued?