[ILUG] Problems with Radeon 9200 & DVI

[Tony Vroon]

On Tue, 2005-05-17 at 10:26 +0100, Niall O Broin wrote:
> Some time ago I bought a Club 3D graphics card which is Radeon 9200 
> based and has DVI and VGA outputs.
> So the monitor upgrade became a PC upgrade :-) This has removed the DVI 
> incompatibility, and I see a picture at BIOS level on the DVI (but not 
> on the VGA panel, which I presume is by design). Windows also works 
> perfectly. But Linux, with X.org, does anything but. It seems that the 
> Radeon driver extracts information  from the monitor's DDC data and 
> then sends a signal which the monitor can't display.

I have had the same issue on my mini Mac (which is going back to the
store this thursday, but that's a different story).
What helped for me is setting:
Option  "MonitorLayout" "TMDS"

Without it, both the primary and the secondary head had a monitor type
of none. (TMDS is DVI-D for external flat panels, LVDS is for internal
laptop flat panels)
With this setting, at least the DVI panel should wake up, if you add CRT
behind the TMDS, your VGA output should also wake up.

Let me know if that helps any.

Tony.
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