I have the same problem. The edid.dat file is empty and on the tvservice command there is no answer and the terminal hangs. Is there a solution to skip searching for the 800x480 display? The quick and dirty solution does not work because of the already empty file
When I disable the OpenGl driver Openplotter starts up normally without stopping at the display check.
When I disable the OpenGl driver Openplotter starts up normally without stopping at the display check.