Did you follow a previous thread I answered today on a blank output
fudmier01 wrote
2.2.0 on linux does not print my drawing the printer sounds like it is printing but the page it outputs is blank, the preview works great, tried to use pdf. it produced a pdf, but the output of the PDF was blank, just like the print page..
this is my first time with Libre Cad.. and Cad in general so I am not sure how to solve this issue..