[NCLUG] Dual head video under linux?

[Mark Fassler]

I have a dual-monitor system.  I'm using two video cards:  an Nvidia 
GeForce4 and a Voodoo 3 PCI.  

Not really any caveats, really.  You just set it up.  

You can use xinerama (an extension to XFree86) that just sticks both 
screens together to make them look like one, big display.  In this case, 
you'll need to have both screens at the same resolution or color depth.  

Or you can use them as two different desktops.  This is what I prefer to 
do.  You have one Xserver running, but two different instances of the 
desktop running independently of each other (one is on display :0.0, the 
other is on display :0.1).  KDE supports this right out of the box.  Gnome 
2.0 doesn't support this by default, but you can make it work perfectly 
with a little tweaking.  (But, why on earth would you want to use 
something other KDE anyway?? :-)

Oh yeah, there's one caveat:  galeon isn't smart enough to be able to run 
on both :0.0 and :0.1, it can only do one or the other.  I've never had a 
problem with any other application.  

-Mark


On Thu, Mar 13, 2003 at 11:13:47AM -0700, James Cizek wrote:
> 
> 
> 
>   Had anyone on the list gotten dual head video under linux working?
>   We are going to buy some new video cards to get dual head going
>   and I would prefer to buy a single card with dual head capabilites
>   versus two cards if possible.  A quick google search indicates that
>   Matrox G450 G550 and HF cards are all supported.  Has anyone got 
>   anything like this working that can offer suggestions/warnings/advice?
> 
>   Thanks.  
>   -James
>   james at colostate.edu
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