Thank you Andy,
slick-greeter 1.1.4-1ubuntu0.18.04.1 from proposed did indeed solve the problem for me in Ubuntu MATE 18.04. I'll set the appropriate verification tag.
Thank you Andy,
slick-greeter 1.1.4-1ubuntu0. 18.04.1 from proposed did indeed solve the problem for me in Ubuntu MATE 18.04. I'll set the appropriate verification tag.