dual monitor support with nvidia card?

Matt Patterson matt at v8zman.com
Wed Mar 15 13:01:21 UTC 2006

Forget the matrox card, they are old and out of date. I run dual monitors
off of my nvidia card. You basically need to look for "dualhead" or
"twinview" cards. You  can discern the difference generally because they are
larger cards with the second monitor port mounted to pcb and not connected
with a wire.

Your concern about the multiple output formats is well founded, there are 4
types: Analog VGA, DVI-I, DVI-A (analog signals available), DVI-Duallink. If
you are running analog monitors then you want a card with 2 analog, 1 analog
+ 1 DVI-A, or 2 DVI-A connectors. The DVI-A connectors can be converted to a
standard vga connector with a simple adapter. My card came with an adapter
for its DVI-A port. If you are running LCD's with DVI-D connections I would
get a card with dual DVI-A or DVI-I connections. Alwasy use the digital DVI
connection when available, the image will be better.

As for your xorg configuration, I am not at home, but I would be glad to
email you a working xorg.conf if you need it. You must use the nvidia binary
drivers (closed source) to use dual head nvidia support. You do get opengl
spanning monitors though.

Hope that helps,

On 3/15/06, Dave M G <martin at autotelic.com> wrote:
> Ubuntu Users,
> I am looking at getting a computer with two monitors, and a graphics
> card that can support them. The only cards I have found on the net that
> both support two monitors and have linux drivers provided by the
> manufacturer is Matrox.
> But the specs of the Matrox card are not as good as the nVidia cards
> (?). The nVidia cards seem to have multiple outputs, but not of the same
> type. I'm not clear on the names of the different types of output
> connector for video, but there seem to be two on the nVidia cards.
> Searching on the web has led to unclear results. Some places seem to
> indicate dual monitor support is possible with the nVidia cards, but I'm
> not entirely sure if that's true, and if so, which models.
> Is it better to go with two cards? Is Matrox reliable with Linux? Has
> anyone here achieved dual monitor support with nVidia?
> Any advice would be much appreciated.
> Thank you.
> --
> Dave M G
> --
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
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