Re: [Flightgear-users] Video Cards

[Bernhard K. <ku...@l1...>]

Timothy Spear wrote:

> Any recommendations for a multi-monitor setup compatible with Flight 
> Gear on Kubuntu Feisty? (I have three ViewSonic 201b)

I'm using two 7800GTX in a combined twinview/xinerama setup
with Fedora Core 6 (check multi-monitor examples in the attached
file). I purchased those cards two years ago - nowerdays,
i would probably take a pair of 8600GT or 8800GTS. I wouldn't
recommend mixing different cards (i.e. 7800GTX + 8800GTX works
only for 2D).

The ATI/AMD Linux graphics driver should basically
also work for MultiGPU 3D operations, but i have never
seen such a setup in real life. Also, from what i have heard,
the nivida driver performs better than ATI on price-wise
comparable hardware.

Please note that 3D operations are limited to 4096x4096 pixels
for nvidia cards. I have three 1600x1200 displays, so for
3D gaming and FG, i need to start a second X-server with
a 3 x 1280x1024 = 3840x1024 resolution in order to fit this
limitation. This is the script i'm using for that purpose:

    xauth add :1 . e35a4dd7ad107110869f6972fa8326ac
    export __GL_FSAA_MODE=5
    xinit /usr/bin/fgfs $* \
      --geometry=3840x1024 \
      -- :1 -xf86config xorg.conf-3840x1024

As per nvidia driver readme, the 8000 series cards shouldn't
have this 4096 pixel limitation, but when i had the chance
to tried out two 8800GTX about half a year ago, the limitation
was still there (maybe a bug in the driver?) ...

regards

Bernhard