[Nouveau] TV-Out on a GeForce 2MX supported?

[Ilia Mirkin]

On Mon, Mar 3, 2014 at 5:41 PM, Nils Krafft <fehmarn-rund at ffti.de> wrote:
> Hello,
>
> I have here a GeForce 2MX (NV10) with a Brooktree BT869 chip for the
> TV-Out.

http://nouveau.freedesktop.org/wiki/FeatureMatrix/

See note #4 -- nv0x-nv2x (nv17-nv19 excluded) need an external,
third-party manufactured TV encoder. Only some Chrontel branded chips
are currently supported.

> shows me only the DVI connection (in fact it's VGA, not DVI), but not
> the S-Video connection. If not supported, is this planned for future
> versions?

The relevant hardware is not easily available, nor is hardware to
consume s-video/composite connections. This sort of thing is probably
only going to be supported if you make it happen. If you're
interested, the relevant source file is
drivers/gpu/drm/nouveau/dispnv04/tvnv04.c, and you'd have to add
something in drivers/gpu/drm/i2c. BT* chips are usually easy to find
docs for, and some of the additional details can probably be worked
out from mmiotraces, assuming you can find a kernel that the blob
driver will load on.

  -ilia