multi monitor/multi card status

Matt Thrailkill matt.thrailkill at gmail.com
Wed Oct 14 11:02:32 PDT 2009


I spent a lot of time a few months ago trying to get 6 video outputs
from multiple Nvidia cards with the Composite extension also.  The
closest I got was using Xgl, but I found a software bug there that
would screw up some of the drawing.

I ended up breaking down and buying two Matrox Triplehead2Go boxes and
using a single videocard to drive 6 displays instead.

I will be glad when eventually X.org has this functionality.  It is a
long time coming.

On Tue, Oct 13, 2009 at 7:25 PM, Csillag Kristof
<csillag.kristof at united-consult.hu> wrote:
> Csillag Kristof wrote:
>> Dave Airlie wrote:
>>
>>> On Sun, Oct 11, 2009 at 7:28 PM, Csillag Kristof
>>> <csillag.kristof at united-consult.hu> wrote:
>>>
>>>
>>>> I am running a non-KMS system, and zaphod mode on radeon segfaults me.
>>>> Here is my xorg.conf and X log, again.
>>>>
>>>>
>>>>
>>> Latest git of -ati?
>>>
>>>
>> Unfortunately, yes.
>>
> Just for the record:
>
> I gave up on the triple-head configuration, at least for now.
>
> I have spent many hours trying to get things work; I have tried a dozens
> of different configurations and workarounds, randr, xinerama, zaphod,
> xdmx...
> but anywhere I go, a bump in a hardware limitation / hardware bug /
> software limitation / software bug.
>
> I don't have any more time to play with this. (Actually, I did not have
> any free time to begin with...)
>
> Maybe I will check back in a few months, when KMS is more widespread and
> available.
>
>   * * *
>
> For now, I will go with a dual-head, randr-united configuration of two
> 1600x1200 monitors connected via DVI to my FireMV card.
>
> Now if only the occasional 1-second blanking would go away...
>
>       Kristof
>
>
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