[Openchrome-users] CN400 DVI output support

[Hadley Rich]

On Thu, 22 Feb 2007 19:20:49 you wrote:
> If the EK is anything like the SP series, then there are TWO things you
> need to do.
>
> In the BIOS, you need to set the output for both VGA and whatever. It's
> on the same page where the AGP and framebuffer window RAM sizes are set.
> IIRC, the 'Default' is VGA + S-video, but there are choices for YpBR and
> Composite. I presume the system can drive 2 outputs, but has to be told
> what those particular 2 are.

Hi Geoff,

I've set the bios to use VGA+DVI (the EK has no TV output) and the bios and 
boot output displays on both devices (or one if only one is connected).

> THEN, you have to set xorg.conf to split the output and send it to both.
> This is stolen from some website, and is also from my xorg.conf:
> Section "Device"
>          Identifier  "Videocard0"
>          Driver      "via"
>          VendorName  "Videocard vendor"
>          BoardName   "VIA Technologies, Inc. S3 Unichrome Pro VGA Adapter"
>          Option      "Active Device" "CRT TV"
>          Option      "TVType" "NTSC"
>          Option      "TVOutput" "S-Video"
>          Option      "EnableAGPDMA" "1"
> EndSection
>
> This tells is to use 2 outputs and what they are. 'CRT' is generic: I am
> driving an LCD monitor as well as the TV.

Yeah, I have an LCD connected to the VGA port too as well as the TV connected 
via a DVI->HDMI cable. I have just tried setting Active Device to "CRT LCD" 
DFP and all the combinations I can think of.

I've been told that LCD and DFP are only for laptop panels so I'm assuming 
that if I use CRT then the driver is meant to auto-detect something connected 
to the DVI module and use that. Unfortunately I can't seem to get it to work.

Thanks for the reply.

Cheers,

hads

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