DisplayLink Forum - apt problem with Synaptics APT repository

Following the website, and "Synaptics APT repository", it ran through until here:

Code:

$ sudo apt --fix-broken install

Reading package lists... Done

Building dependency tree... Done

Reading state information... Done

Correcting dependencies... Done

The following package was automatically installed and is no longer required:

  libevdi1

Use 'sudo apt autoremove' to remove it.

The following additional packages will be installed:

  evdi

The following NEW packages will be installed:

  evdi

0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.

1 not fully installed or removed.

Need to get 0 B/48,9 kB of archives.

After this operation, 0 B of additional disk space will be used.

There seems to be no way out of this, neither with installing / uninstalling of evdi.
*buntu 24.4.1.

I had removed the earlier stand-alone before, including reboot.

How to get out of this?