Mini-DVI

Mini - DVI provides, mainly used by Apple, alternative to mini-VGA dar. There is DVI -I ( Single Link ) in reduced design and supports thus in contrast to mini-VGA both analog and digital video signals. So Mini - DVI video interfaces combines two well-established with a small design.

The interface was in the 12 " PowerBook (G4, second version), Intel -based iMacs and MacBooks 4.1-8.1 1.1-4.1 and 5.2 to find. It should be noted that at least in delivered on the German market devices mini -DVI output port of MacBooks from that of the first-mentioned computer is different. , the German Apple Store has in its range of adapters out of which computer they use.

The Mini -DVI port is largely similar to the mini- VGA port, but he has four instead of two rows of pins.

With optional adapter, it is possible to also use this output for DVI, VGA and TV signals. The Adapter for TV ( Video and S- Video) contains an IC for DDC lines. The adapter for DVI can not be used with a DVI-to- VGA adapter, because the adapter only has a DVI -D instead of a DVI - I socket. The Mini -DVI port is usually installed for space saving purposes, instead of the DVI connector.

The 2006 specified DisplayPort or Mini DisplayPort allows, among other things, higher bandwidths, copy protection and a return channel. Apple uses it since October 2008. Whether he will prevail across the board, is unclear.

HDMI displays are compatible with DVI outputs, but which do not support HDCP copy protection via a simple adapter, the example Blu -ray is common. Protected media can about Mini-DVI ( DVI and all), not be played if the graphics card not already supported. Also provides DVI then no sound available. Native HDMI outputs, however, as is now common in the home entertainment area, are still unusual, what is likely to change with the proliferation of Blu- ray drives in such devices for notebooks and workstations.

Specifications

The adapter is detected when Pin 25 ( Detect) is connected to pin 17 ( 5 V). Whether the video adapter ( RCA and S- video) or a VGA device or a DVI device is connected and what settings (eg resolution) supports it, the computer will detect by reading the EDID via DDC. Here, the EDID is at VGA and DVI devices in the device itself, the video adapter ( RCA and S-video ), however, in the adapter.