Xinerama dual-head configuration with the open-source mga driver

[Alex Deucher]

On Mon, Jun 11, 2012 at 5:24 AM, Youssef Eldakar
<youssefeldakar at gmail.com> wrote:
> I installed Ubuntu 12.04 on a 32-bit machine that has a Matrox G450
> dual-head AGP. The xserver-xorg package installed is 1:7.6+12ubuntu1, and
> the xserver-xorg-video-mga package installed is 1:1.4.13.dfsg-4build2. In X,
> both monitors come on but display the same output. I enabled Xinerama in
> xorg.conf and defined the dual-head configuration hoping I would get one
> desktop spread across both monitors but still had the same mirrored output.
>
> With the official driver from Matrox on this version of X, only one monitor
> turns on.
>
> I was trying to locate information on the status of the open-source mga
> driver but did not find much on wiki.x.org/wiki/mga. Is a Xinerama dual-head
> configuration supposed to be supported with the open-source driver for the
> G450? If not, is it planned to be supported soon?

I has worked at various points in the past with the open source driver
(I used to use it), but the hw is really old and the driver is more or
less unmaintained at this point so YMMW.

Alex

>
> Youssef Eldakar
>
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