Under the following URI you can find the screenshots. https://cloud.dahlberg.cologne/index.php/s/6tStjnwxGXpjydP
gdm0.jpeg: GDM comes up like that. gdm1.jpeg: After the first round of Ctrl-F1/Ctrl-F5 gdmN.jpeg: After the n-th round ouf Ctrl-F1/Ctrl-F5 Displays are reproducable - i.e. dependent on console switch rounds, not dependent on time.
