I install the SD Card in the Pi4 connected to an external 7'' screen because my Pi4 is only doing a grey screen on the 3.5'' lcd touchscreen. When I start, the program do his stuff but at the end, it's asking for a login password. There is NO keyboard attached and why the Pi screen is not recognized?
What did you already try to solve it?
try 6 times,
Have you tried running in safe mode?
No since it cannot
Did running in safe mode solve the problem?
No like previous answer
Systeminfo Bundle
You can download this in OctoPrint's System Information dialog ... no bundle, no support!)
WRITE HERE
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
You probably didn't set it up in the config files in the boot partition and/or you need to install drivers for it.
Those gpio screens aren't plug and play.
Ask the place where you bought it for instructions