External Display on iBook?

Discussion in 'Macintosh Computers' started by OCOTILLO, Nov 17, 2005.

  1. macrumors regular

    Joined:
    Mar 25, 2005
    Location:
    Houston, TX
    #1
    Can the 12" iBook drive an external 20" ACD at full resolution?
     
  2. Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #2
    With the screen spanning "hack" I would have thought so.

    Without the hack no, it can only support mirroring (so 1024x768).
     
  3. macrumors 68030

    Joined:
    Mar 30, 2004
    #3
    Even with the spanning hack, to drive ACD, you will need to purchase VGA to DVI converter. They cost quite a bit the last time I checked, at least a couple of hundred bucks. Cheaper option is to purchase non-Apple display such as Dell that includes VGA input. Of course, quality via VGA is not as clear as DVI.
     
  4. Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #4
    Good catch. I forgot that ADC displays are DVI-D only.
     
  5. MRU
    macrumors demi-god

    MRU

    Joined:
    Aug 23, 2005
    Location:
    Ireland
    #5
    DVI - VGA adapters are about 10 Euro - where do you live where they cost a couple of hundred :cool:
     
  6. macrumors 68030

    Joined:
    Mar 30, 2004
    #6
    DVI to VGA may be as low as $10. But VGA to DVI are in the hundreds.
     
  7. Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #7
    The reason for this is obvious when you stop and think. Graphics cards have DVI-I connectors so they have DVI and full VGA on one connector so the convertor is basically just straight through. To go from VGA to DVI you need to lock onto the VGA clock, extract the pixel signal then re-encode to digital and transmit via a TDMS. i.e. expensive!
     

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