[mythtv-users] MX440/Radeon wars (Was: Hardware ideas)

[Jarod Wilson]

On Friday 25 June 2004 11:10, David Wood wrote:
> On Fri, 25 Jun 2004, Jarod Wilson wrote:
> > Yes. And ran it on a 27" analog, interlaced-only television for several
> > months.
>
> What I'm still wondering is, in linux, what options do you have for size
> and positioning of the TV-out signal? And do they work (i.e. can I
> reliably get the size right)? I see reports, esp. with the mx440's, of
> people getting stuck with black borders (yech) or missing edges (almost
> as bad)...

People with black borders probably don't have overscan configured, or are 
using one of the nvidia drivers with busted overscan. In some rare cases, 
there may be TV sets that you can't overscan enough to fill the screen.

As for missing edges, it can be tricky getting a perfect fit on a TV. 
Televisions and television signals were designed with the assumption that 
part of the broadcast signal would end up off the screen. Part of my desktop 
extends off the edges of my analog set (not a huge amount), but Myth has 
built-in features to compensate. Not ideal if you intend to use your TV as 
your desktop display as well, but this is more the fault of the television 
than anything else.

> Will I be making up numbers in XF86Config? Or are there tools for this?

Depends on your exact card. There exists a utility called nvtv that can be 
used to move the picture around a little bit. I just used the nvidia driver's 
built-in settings, which does require a tiny bit of XF86Config editing (very 
easy though). I have example configs posted on my web site (see sig).

-- 
Jarod C. Wilson, RHCE
jcw at wilsonet.com

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