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Old 07-29-05, 04:35 AM   #1
ostiffel
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Join Date: Jan 2005
Posts: 3
Default please post your dual-dvi success stories

I am starting to believe that very few dual-dvi combinations actually work with nvidia under linux. I have tried a large number of combinations on a few different computers. Most of them have not worked, and the ones that do work are extremely brittle.

If you have managed to get 2 dvi screens working, please post your configuration. I would like to build one that is known to work instead of wasting all my time on trial and error.

Hopefully it involves commodity components (easy availability from mainstream vendors).
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Old 07-29-05, 11:03 AM   #2
ckc76
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Default Re: please post your dual-dvi success stories

My dual DVI setup is working perfectly: twinview / xinerama, framebuffer on console. My card is a 6800 GTO (from Dell), my system is a Dell Dimension 5000 (should be the same as the 5100 they sell now). The system was first shipped with a standard 6800 (1xDVI,1,VGA) but Dell replaced the card with the GTO version (as the system was advertised as a dual-DVI system; the GTO version normaly goes with some XPS systems from Dell. So DONT by this System if you want a dual DVI-setup even if it is still advertised as this; it was REALY hard work to make the support sent me the GTO version as replacement )
I use SUSE 9.3 but had to build the driver myself, the one packaged by SUSE didn't work (maybe bacause I upgraded to another kernel, I don't know, I don't care... Got the "black screen but mouse-cursor" thing)
anyway, here are my configs, one for twinview, one for xinerama; both working perfectly, I personally prefer the xinerama version because of the individual gammacorrection for each monitor.
I wonder why this shouldn't work with any other 6800er card.... Maybe you can give some more infos.
Attached Files
File Type: txt xorg.conf.twinview.txt (5.1 KB, 226 views)
File Type: txt xorg.conf.xinerama.calibrated_2.2.txt (6.3 KB, 227 views)
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Old 07-29-05, 05:30 PM   #3
richnv
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Default Re: please post your dual-dvi success stories

ckc76,

In Twinview do you need to fake the monitor DisplaySize as 680 270 (instead
of 340 270)? I find that if I don't do that acroread and totem don't work - they
squash the image flat.

BTW I'm using

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce FX 5500"
Option "TwinView" "on"
Option "SecondMonitorHorizSync" "30-82"
Option "SecondMonitorVertRefresh" "56-76"
Option "MetaModes" "1280x1024,1280x1024; 1024x768,1024x768"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Viewsonic"
ModelName "VP171b"
DisplaySize 680 270
Option "dpms"
EndSection
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Old 07-30-05, 03:55 AM   #4
ckc76
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Join Date: Jun 2005
Posts: 17
Default Re: please post your dual-dvi success stories

@ richnv
Yes, in Adobe Reader the documents got streched twice as wide in twinview. But I could correct tis in the preferences of the Adobe Reader: I set Page Display - Resolution from "use system setting" to "custom resolution" and 72 Pixel/Inch. I guess the way you disribed is cleaner, but since alle other programs I use (don't use totem) have no problem at all, this worked well enough for me so far. But I will try the changes in the the twinvie config to see if this will mak i.e. Adobe Reader run correctly out of the box.
Thanks for the info.
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