Hi there new member here, I have searched how to check if I have a sam or lg screen for my haswell macpro? 
I have searched and tried this command in my terminal window and nothing happens, no code comes up, thanks!
ioreg -lw0 | grep \"EDID\" | sed "/[^<]*</s///" | xxd -p -r | strings -6
I have searched and tried this command in my terminal window and nothing happens, no code comes up, thanks!
ioreg -lw0 | grep \"EDID\" | sed "/[^<]*</s///" | xxd -p -r | strings -6