Mini-DVI

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Not to be confused with Mini DisplayPort.
Mini-DVI
Kobushi-mini-dvi.jpg
The Mini-DVI plug on a 12-inch PowerBook G4
Type Digital and analog computer video connector
Designer Apple Inc.
Manufacturer Apple Inc.
Superseded Mini-VGA
Superseded by Mini DisplayPort (October 2008)
External yes
Video signal As DVI
Pins 32
MiniDVI Connector Pinout.svg
A female mini-DVI socket
Pin 1 Dat2_P Data 2 +
Pin 2 Dat2_N Data 2 -
Pin 3 Dat1_P Data 1 +
Pin 4 Dat1_N Data 1 -
Pin 5 Dat0_P Data 0 +
Pin 6 Dat0_N Data 0 -
Pin 7 CLK_P Clock +
Pin 8 CLK_N Clock -
Pin 9 DGND
Pin 10 DGND
Pin 11 DGND
Pin 12 DGND
Pin 13 DGND
Pin 14 DGND
Pin 15 DGND
Pin 16 DGND
Pin 17 +5 V
Pin 18 DCC_DAT
Pin 19 spare
Pin 20 BLUE Analogue blue
Pin 21 not installed
Pin 22 GREEN Analogue green
Pin 23 not installed
Pin 24 RED Analogue red
Pin 25 Detect
Pin 26 DCC_CLK
Pin 27 spare
Pin 28 DGND
Pin 29 HSYNC Horizontal sync
Pin 30 DGND
Pin 31 VSYNC Vertical sync
Pin 32 DGND

The Mini-DVI connector is used on certain Apple computers as a digital alternative to the Mini-VGA connector. Its size is between the full-sized DVI and the tiny Micro-DVI. It is found on the 12-inch PowerBook G4 (except the original 12-inch 867 MHz PowerBook G4, it used Mini-VGA), Intel-based iMac, the MacBook Intel-based laptop, the Intel-based Xserve, the 2009 Mac mini, and some late model eMacs.

In October 2008, Apple announced the company was phasing Mini-DVI out in favor of Mini DisplayPort.

Mini-DVI connectors on Apple hardware are capable of carrying DVI, VGA, or TV signals through the use of adapters, detected with EDID (Extended display identification data) via DDC. This connector is often used in place of a DVI connector in order to save physical space on devices. Mini-DVI does not support dual-link connections and hence cannot support resolutions higher than 1920×1200 @60 Hz.

There are various types of Mini-DVI adapter:

  • Apple Mini-DVI to VGA Adapter Apple part# (M9320G/A)
  • Apple Mini-DVI to Video Adapter Apple part# (M9319G/A; discontinued but provided both S-Video and Composite video connectors)
  • Apple Mini-DVI to DVI Adapter (DVI-D) Apple part# (M9321G/B)

A non-OEM Mini-DVI to HDMI Adapter is also available on certain online stores such as eBay and Amazon, and from some retail stores, but not from Apple.

The physical connector is similar to Mini-VGA, but is differentiated by having four rows of pins arranged in two vertically stacked slots rather than the two rows of pins in the Mini-VGA.

Connecting to a DVI-I connector requires a Mini-DVI to DVI-D cable plus a DVI-D to DVI-I adapter.

Criticisms[edit]

  • Apple's Mini-DVI to DVI-D cable does not carry the analog signal coming from the mini-DVI port on the Apple computer. This means that it is not possible to use this cable with an inexpensive DVI-to-VGA adapter for VGA output; Apple's mini-DVI to VGA cable must be used instead. This could be avoided if Apple provided a mini-DVI to DVI-I cable. The purpose of DVI-I is to ensure universal compatibility.[1][2]
  • The Apple mini-DVI to DVI-D cable's package shows a DVI-I figure instead of DVI-D and does not specify that it comes with only DVI-D.

Compatibility[edit]

As Mini-DVI is pin-compatible with DVI, it supports both DVI and VGA through adapters. However, since Apple has moved on to Mini Displayport, there has been a scarcity of available options for users looking to connect to Displayport displays, such as Apple's own Cinema Display.

See also[edit]

References[edit]

  1. ^ "Blog explaining the difference". Retrieved 2009-10-11. 
  2. ^ "Image showing the difference". Retrieved 2009-10-11. 

External links[edit]