RGB TV output on Radeons?

[-=]

I'm gathering together a parts list to build a HTPC. As I'm in Europe, the
best connection I can get to my TV is by RGB SCART.

From what I can tell, the Russians seem to have been able to get RGB TV
output from Radeon cards. However, I haven't been able to find any
information in English. Can anyone here help me?

My alternative is an old Matrox G400 card, which with a little wiring job,
can output to RGB SCART. However, I would like a more modern card for
futureproofing etc.

 

[Paul Dexter]

Hi,
I'd be interested to have a look at the sites where you found the
information. Could you post the sites.

Thanks in advance

 

[-=]

Hi,
I'd be interested to have a look at the sites where you found
the information. Could you post the sites.

Thanks in advance

Sure! Somebody pointed me in the direction of:

http://ryoandr.free.fr/english.html

Good luck! )

 

[Dex]

ATI make a VGA to component video adapter but it's only for NTSC TVs,
just thought you'd like to know.

Anyway I had a look at the site and it seems pretty straight forward as
long as the wiring diagram is correct. It should work for any card that has
some sort of user control over horizontal and vertical frequency output, so
you can match it to the TVs inputs.

RealVNC is a remote access program which allows you to see and use
another computers desktop on another computer across a network. It is
required as the desktop of computer with the TV connected may not be
viewable until the frequencies are correctly set. Of course it may be
possible to set the frequencies (if you know what they are) for the TV using
a monitor and then swap to the TV after saving the settings and shutdown the
computer. But using RealVNC would be easier and safer for
the TV.

 

[-=]

ATI make a VGA to component video adapter but it's only for NTSC
TVs, just thought you'd like to know.

That would be nice! Unfortunately, here in the UK, only high-end televisions
that support progressive scan have component input, and since I have a
mid-range set, I'm looking at RGB.

Anyway I had a look at the site and it seems pretty straight
forward as long as the wiring diagram is correct. It should work for
any card that has some sort of user control over horizontal and
vertical frequency output, so you can match it to the TVs inputs.

Yep, I'm reasonably confident I can pull it off. It would be interesting to
see how wide I can shift the pixel count on my set. Since it's a widescreen,
shifting it into widescreen mode whilst adjusting the overscan should
theoretically give me greater horizontal resolution.

RealVNC is a remote access program which allows you to see and use
another computers desktop on another computer across a network. It is
required as the desktop of computer with the TV connected may not be
viewable until the frequencies are correctly set. Of course it may be
possible to set the frequencies (if you know what they are) for the
TV using a monitor and then swap to the TV after saving the settings
and shutdown the computer. But using RealVNC would be easier and
safer for the TV.

That site seems to suggest doing some pretty dangerous things with the tv
still on and connected to the VGA-out. I'd keep it switched off until the
timings are as the site suggests and then switch on when the pc restarts. I
used to use RealVNC many moons ago for remote control of servers, although
not so much since the advent of RDP. I'm pretty sure RDP will work as well
actually.

 

[Dex]

I use a RADEON 9600XT with SVHS output on a Panasonic Widescreen with a
desktop of 1024x768 and RealVNC for remote access. The computer plays DVDs
from disc and harddrive.

Does your TV have the 100Hz Scan feature? I agree about turning it off.
If you have a good signal ground between the computer and the TV you could
connect the RGB etc to the TV while on. I think the TV expects around 1V
Peak to Peak signals (between R or G or B to ground) on the inputs so it
would pay to check the voltages coming from the VGA socket first. But
turning it off is safer for the TV.