What I actually did was:
Setting up one RPi3 with the pre-configured “Vendor Specific Raspberry Pi Image” from the Photonic web page.
Then I did a second RPi3 image from the Github page https://github.com/Photocentric3D/Photonic3D
Both installation showed more or less the same behavior. In one of the installations I was indeed asked “Don’t have a printer installed? Try one of these:” and only LC10 could be selected.
In the other installation were different Printer types to choose from.
As far as I remember I did initially NOT touch any setting for display; I startet playing around BECAUSE the setups were not working.
But I´m quite happy for your support and will try to do a new, clean installation again.
Could you please just tell me, what image makes sense for me to use?
Are there potential issues I have to take care of during or after installation?