After apt-get update on 18.04.1 the problem still existed.
Than, I performed a complete new installation of kubuntu 18.04.1 from CDROM on the same computer(s), empty home directory too. The issue disappeared on all computers?!
The fresh kubuntu 18.04.1 installation fixed the bag. No idea why.
After apt-get update on 18.04.1 the problem still existed.
Than, I performed a complete new installation of kubuntu 18.04.1 from CDROM on the same computer(s), empty home directory too. The issue disappeared on all computers?!
The fresh kubuntu 18.04.1 installation fixed the bag. No idea why.