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Problem with NV Surround and 3 projectors

griff30

griff30

Supreme [H]ardness
Joined
Jul 15, 2000
Messages
7,730
I have a dated system I am setting up for home theatre and games for the kids in the garage. Any help or input is appreciated.

I have:
3 identical Dell 2400 MP Projectors.
Gigabyte 990FXA-UD3
2 GTX 460s in SLI. SLI is working with latest drivers
AMD 4 core at 4 GHZ, 16 gigs or ram.
Onboard sound with hacked Dolby Digital Drivers.

The projectors are placed in portrait mode because I didn't want a 4 foot tall screen 18 feet wide. I wanted 7 foot tall and 16 feet wide. (or there about)
I was looking to make the screen 2:35 aspect ratio.

I had set the projectors at the native resolution but Nvidia control panel wants to run them higher at 1600x1200. for a screen that's 3600X1600 resolution.

When I try to set them at 3x1 in surround, it will not "accept", it's all greyed out. So is setting up any of the controls for it.

I tried setting the resolutions to native resolution to see if that would fix it and the 3rd screen starts shaking like it has advanced Parkenson's disease, so I left it at the higher resolution.

I can use it like this spanned with VLC player and stretch the media player across the screens but if you maximize it, it works in one screen.

I read that some old sound drivers can stop SLI from working but it shows up as SLI enabled on a single 1920x1080 screen and on the projectors. So I hope that its not the case. I wanted Dolby Digital pumping through my Yamaha receiver for 750 Watts of 5.1
Just cant get surround to work.

My Daughter has a birthday on the 23rd and I wanted to use the system for her party to play movies for the kids. So I have a week to fix it.

Any help appreciated!
 
Try it without the hacked sound drivers. If that fixes it, then you can get a proper sound card and have your cake and eat it too.
 
dmonkey said:
Try it without the hacked sound drivers. If that fixes it, then you can get a proper sound card and have your cake and eat it too.
Click to expand...

I think I will try with my Asus Xonar.
Not much room with SLI for a sound card though.:(
 
Does Nvidia Surround require identical monitors to work? I had a problem back in the day with my Eyefinity setup where it would not allow me to use bezel correction because it thought my 3 HP ZR24w monitors were not identical. Turns out there was a bug in some of the earlier ZR24w monitors where the EDID information was incorrect. Early models reported 24.1" and newer models reported 24". HP had to replace the older monitor for Eyefinity to end up working.

So identical may not be identical....
 
Surround requires identical monitors/projectors.
Hadnt thought that they may not report the same.

I wonder if there is a hack.
My PCI card wont fit.
 
Ok So I got it running without surround.
just stretched the video across 3 screens. No gaming that way though.

Edid shows them as not identical. I might try to fix that.
No way I can get the manufacture to fix EDID on 4 year old monitors.

I wondered if AMD was better at this than NVidia. But Erasmus' post suggests not.
 
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