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Old 08-10-09, 03:47 PM   #1
oaj
Registered User
 
Join Date: Aug 2009
Posts: 3
Default Which NVIDIA Graphics Cards can display 2048x2048 ?

Hi!

I would like to use an nvidia graphics card, to drive a 2048x2048 square LCD Display like BARCO's ISIS (MDP-471).
(Please see http://www.barco.com/barcoview/downl...atasheet_l.pdf)
The BARCO display does not support EDID.

I have this card:
GeForce 9800 GT
VBIOS Version: 62.92.52.00.1d
Memory: 1024 MB
Bus Type: PCI Express 16x
Bus ID: 3:0:0
PCI Device ID: 0x614
PCI Vendor ID: 0x10de
IRQ: 201

I'm using Linux CentOS-5.3-x86_64 / debian-502-amd64 ("stable"),
and I have installed NVIDIA's driver x86_64 version 185.18.31.

The "nvidia-settings" program don't list de 2048x2048 resolution.

I've tried to use "xrandr", but it doesn't work too.

I saw this url: http://forums.entechtaiwan.com/index.php?topic=1168.0

I've configured my "/etc/X11/xorg.cfg" defining modeline parameters, and disabling DDC and EDID like below:

...
Section "Monitor"
...
ModeLine "2048x2048" 360.060 2048 2216 2440 2832 2048 2049 2052 2119 +hsync +vsync
...
EndSection
...
...
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 9800 GT"
Option "NoDDC" "true"
Option "DPI" "96 x 96"
Option "UseEDID" "FALSE"
Option "UseEDIDFreqs" "FALSE"
Option "UseEDIDDpi" "FALSE"
Option "ModeValidation" "NoEdidModes"
EndSection
...

But this configuration also doesn't work.

BARCO's display must be driven using the following frequencies:
- Horizontal frequency: 118.187 KHz
- Vertical frequency: 56.821 Hz
- Pixel Clock: 257.000 MHz
- Number of Lines: 2080

My questions are:
1) Which NVIDIA Graphics Cards can display 2048x2048 using frequencies listed above ?
2) How can I configure this ?

Thanks in advance.

Odracir.
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