Minidisplayport | Technical Characteristics |


Mini DisplayPort

The Mini DisplayPort (MiniDP or mDP) is a miniaturized version of the DisplayPort digital audiovisual interface. The features and signals are the same.

Apple announced the launch of the Mini DisplayPort in October 2008. In 2013, Apple installed this port on all new Macintosh computers : MacBook, MacBook Pro, MacBook Air, iMac, Mac mini, Mac Pro.
The Mini DisplayPort is also installed on laptops from manufacturers such as Alienware (DELL), ASUS, Microsoft, Lenovo, Toshiba, MSI and HP.

Unlike its Mini-DVI and Micro-DVI predecessors, the Mini DisplayPort is capable of supporting resolutions up to 2560-1600 (WQXGA). With an adapter, the Mini DisplayPort can connect to display devices with a VGA, DVI, or HDMI interface.
The Mini DisplayPort connector, invented by Apple, is increasingly used, both in graphics cards (some AMD and Matrox models) and in computers (Apple, of course, but also Toshiba).
With the release of the Radeon 5870 EyeFinity and its six Mini DisplayPort connectors (expected March 11), let's go back to this connection.

The Mini DisplayPort is a smaller version of the DisplayPort. The video features are identical to those of DisplayPort, but audio features are not available on all devices.
There are several ways to plug a screen into a Mini DisplayPort socket : with a native screen, via a (passive) adapter to DisplayPort (and a screen to that standard), through an adapter to DVI (passive or active) or an adapter to VGA.

There is a screen at Apple, the ability to use a 27-inch iMac as a screen or a CinemaView screen.
The other simple solution is to use an adapter to DisplayPort and plug in a rare and expensive DisplayPort display.
The most common solution is to use a VGA or DVI screen. In the first case,
you need an active adapter (which transforms the signal). In the second, it is very dependent on the graphics card.


The DisplayPort (and therefore the Mini DisplayPort) offers a DVI compatibility mode, which actually uses a DVI signal transmitted on a DP socket.
But this signal must be sent from the graphics card through a TMDS, a component generating the signal.
Small problem, besides the fact that this mode limits the signal to a single link (1,920 x 1,200), there are sometimes fewer TMDS than outputs.
AMD's EyeFinity card should have only two compatible outputs.
If you need to use a 30-inch screen or plug a DVI screen into a socket without TMDS,
An active adapter will be required. Beware, they are expensive and require a USB socket for power.

In fact, the Mini DisplayPort is beginning to democratize in devices, but display devices are still too rare.