hdmi, dvi, hdcp and Mythtv

Corey Edwards tensai at zmonkey.org
Wed Dec 10 11:58:53 MST 2008

On Wed, 2008-12-10 at 11:11 -0700, Michael Torrie wrote:
> I am considering buying a 1080p hdtv that has several hdmi input ports.
>  I understand I can buy a cable or adapter to drive hdmi from the DVI
> port on my mythtv machine.  Two questions.
> Can dvi theoretically output 120 Hz at full 1920x1080 resolution?  Or is
> it limited to 60 Hz?

I ran across this a while back. It may be of interest to you.


> If I'm converting DVI to HDMI signal, can I still play video through
> mythtv or mplayer at full HD resolution (1080p) without HDCP or will the
> TV refuse to do it?
> My understanding of HDCP is that it's the video source that determines
> whether or not it wants to display video in HD 1080p mode without HDCP.
>  In other words the computer or video player (Vista or OS X sadly) that
> demands an HDCP "secured" connection. Is this correct?  If so then I
> think I'll be fine driving HDTV with myth.

I'm looking at the same setup and I believe that to be correct. I have
not yet had the pleasure of testing it out.


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