[mythtv-users] Cable Quality component DVI HDMI ?

Steven Ellis steven at openmedia.co.nz
Tue Dec 12 03:26:35 UTC 2006

On Tue, December 12, 2006 4:02 pm, Robert Johnston wrote:
> On 12/11/06, Edgar Sigal <esigal at insidewire.com> wrote:
>> Hi All
>> Is there a quality difference when using component video cables vs DVI
>> vs
>> HDMI?
>> I saw an HDMI cable package that claims it had a better picture quality
>> over
>> the other two methods.
>> Are they not all carrying the same signals?
>> Are the signals Digital such that there should be no signal loss?
> Component is analog.
> DVI and HDMI are both digital. However, only HDMI supports HDCP, which
> (will eventually) be required for HD-DVD and Blue-Ray. As Linux
> doesn't support HDCP (Yet), this is a non-issue for Myth, so DVI and
> HDMI are essentially equivalent. However, most video cards have a DVI
> output, and to connect to HDMI requires an adaptor.

You can do HDCP over DVI as well. The Dell 2407WFP screens have DVI but no
HDMI, but they support HDCP.


Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
sales   - sales at openmedia.co.nz
support - support at openmedia.co.nz
website - http://www.openmedia.co.nz

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