[mythtv-users] HDMI vs DVI->HDMI

Lorenzo Cappelletti lorenzo.cappelletti at gmail.com
Wed Feb 25 13:46:11 UTC 2009


On Wed, Feb 25, 2009 at 12:55 PM, Ben Lancaster <mail at benlancaster.co.uk> wrote:

> Does it offer any improvement over a DVI to HDMI cable that I'm running at
> the moment?

Wikipedia says <http://en.wikipedia.org/wiki/Hdmi#Compatibility_with_DVI>:

A DVI signal is electrically compatible with an HDMI video signal; no
signal conversion needs to take place when an adapter is used, and
consequently no loss in video quality occurs.[3] As such HDMI is
backward compatible with Digital Visual Interface digital video (DVI-D
or DVI-I, but not DVI-A) as used on modern computer monitors and
graphics cards. This means that a DVI-D source can drive an HDMI
monitor, or vice versa, by means of a suitable adapter or cable.
However, the audio and remote-control features of HDMI will not be
available.[3] Additionally, not all devices with DVI input support
High-bandwidth Digital Content Protection (HDCP). Without such support
by the device, an HDCP-enabled signal source will suppress output and
so prevent the device from receiving HDCP-protected content.[94]


I was also wondering if anyone of you guys has ever found a TV set
and/or a graphic card supporting DisplayPort
<http://en.wikipedia.org/wiki/DisplayPort>.

DisplayPort is a digital display interface standard (approved May
2006, current version 1.1a approved on January 11, 2008) put forth by
the Video Electronics Standards Association (VESA). It defines a new
license-free, royalty-free, digital audio/video interconnect, intended
to be used primarily between a computer and its display monitor, or a
computer and a home-theater system.

-- 
Lorenzo


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