VGA Dual Screen

Discussion in 'iMac' started by fletcher86, Sep 20, 2007.

  1. fletcher86 macrumors newbie

    Joined:
    Sep 20, 2007
    Location:
    Gold Coast
    #1
    Just bought a mini DVI to VGA adaptor to connect an old VGA monitor to my IMAC but my vga monitor is just showing diagonal lines across it do i have a crap monitor or does it have to be calibrated somehow other than in system perferences??
     
  2. edesignuk Moderator emeritus

    edesignuk

    Joined:
    Mar 25, 2002
    Location:
    London, England
    #2
    Try using different resolutions/colour depths/refresh rates (all found in display preferences). Sounds like the screen might be shafted though :eek:
     
  3. dammitjanet@gma macrumors member

    Joined:
    Aug 23, 2007
    #3
    fletcher

    the issue sounds like the vga monitor is dumb and might not be vesa compliant, and probably older than 7 years.

    what you are seeing is the your mac trying to guess the resolution and refresh rate for the monitor and it is not supported by the monitor. obviosuly if you try and adjust the monitor, the settings are being "shown" on the monitor you cannot read so no luck there.
     
  4. fletcher86 thread starter macrumors newbie

    Joined:
    Sep 20, 2007
    Location:
    Gold Coast
    #4
    thanks

    thanks guys pretty sure the monitor is an old one but ill have a play with the settings cheers
     

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