single user mode display identification command needed

Discussion in 'Mac Programming' started by retinalcircus, Jul 14, 2012.

  1. macrumors newbie

    Joined:
    Jul 14, 2012
    #1
    Hello!

    Thanks in advance for any help on this issue.

    I have swapped displays between two MacBook 1,1 computers. (One had a display that was cracked and the other had a dead motherboard). Now I can only boot into single user mode (command-S while starting up). The recipient of the new screen gives errors like: "GFX0: family specific matching fails" and "display: family specific matching fails"

    I need a command to use from single user mode to identify the transplanted display's identity.

    Then I plan to modify the EFI so that it is again happy with the new display.

    Anyone know the code for display identification?

    Thanks again.

    ----------

    I found this command via google

    ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6

    but it only works from the terminal, which I can't get to. I can only access the command line via single user mode.


    So, I need different information...
     

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