DISPLAY TROUBLE

Discussion in 'Macintosh Computers' started by jide, Jan 18, 2005.

  1. macrumors newbie

    Joined:
    Jan 18, 2005
    #1
    I have a mac G4 running on OS 9.2 and I just installed a Viewsonic
    PF790 monitor.
    I went to control panels to change the monitor resolution, and I
    think I set it too high, because now I can't see anything (monitor is
    black, even after reboot), and it won't set back lower automatically
    like it does on a PC. :confused:
    Do you have any suggestions how to solve this?
    Any help would be very much appreciated.DISPLAY TROUBLE
     
  2. macrumors regular

    Joined:
    Jan 26, 2004
    #2
    Try resetting the PRAM (hold down "command" + "Option" + "P" + "r" keys straight after you power the machine up.

    Keep holding them until you hear a SECOND startup chime, then hold down the "shift" key to continue the boot without extensions being loaded.

    It should boot up in a lower resolution and you can then make adjustments in the control panel.
     
  3. thread starter macrumors newbie

    Joined:
    Jan 18, 2005
    #3
    Thanks,
    it worked til a message pop up:
    "Monitors cannot be used because a required extension, System Monitor Plugins, is disabled or not installed"

    I tried to enable the extension folder, but it says changes only applies after restart, which will put me back to the previous situation.
    What should I do?
     
  4. thread starter macrumors newbie

    Joined:
    Jan 18, 2005
  5. macrumors 6502a

    Passante

    Joined:
    Apr 16, 2004
    Location:
    on the sofa
    #5
    boot from os X cd

    Try booting from the OS X cd. Trash the monitor preferences.
     
  6. macrumors 68020

    Dreadnought

    Joined:
    Jul 22, 2002
    Location:
    Almere, The Netherlands
    #6
    the pref is standard in your system folder. just activate it with the extensionmanager and you are set to go.
     

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