Widescreen Gaming Forum

I just realized this but I can do 5x1L, not just 5x1P. The limitation is that my 5870's enforce a maximum pixel width of 8000. I was under the impression that on the 6000-series that 8000 pixel limit was doubled to 16k. Could anyone check that to be sure? This can be checked by looking at the dxcaps application in the directx sdk. If that is the case a 6990 could do 5x1L 1080p projection.

8000x1200 would be theoretically ideal for five 1600x1200 displays. It forced 8000x1200 on my 5 1920x1200. The next resolution down that it accepts is 6400x800. Just thought it was interesting since I've seen no mention at this at all being shown anywhere.

What this means, at least for projector users is 360 degree is a lot more probable of a setup now with something like 1280x800 projectors. 6400x800 on 360 degree projection for MSFS anyone? This is something I pondered initially when I first started my projection builds but was later shot down by the reality of 180-degree limited games and at the time the 3x1 limit of TH2G. I guess things change with time. I guess 180 degree limited game cameras are still a stumbling block, but the 5x1L availability is now one step closer to reality of 360 degree game projection. :wink:

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Brad Hawthorne
Product Manager
Nthusim Pty. Ltd. | www.nthusim.com

I don't have an answer but I am very interested in one. I agree- the idea of multi-projector surround gaming would be a heck of a lot cooler with 5 landscape screens to work with... think rise of flight ! :)

I can confirm that both my 5870 E6 and my 6990 offered 5x1600x900 resolution. Should do 5x1600x1200 for you. There is no bezel compensation, but you wouldn't need it with projectors.

I'll have to do a bit of math and figure out what 16:10 is with 1600x????. That way I can force a custom resolution on it and get proper aspect ratio. 8000x1200 is pretty cool so far. It's just not properly proportional resolution for my panels.

_________________
Brad Hawthorne
Product Manager
Nthusim Pty. Ltd. | www.nthusim.com

I'll have to do a bit of math and figure out what 16:10 is with 1600x????. That way I can force a custom resolution on it and get proper aspect ratio. 8000x1200 is pretty cool so far. It's just not properly proportional resolution for my panels...

.... well ...



1600x1000 is the new resolution you are looking for.

But I don't think i really needed to spell it out like that...

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My brain isn't working tonight. 16:10 = 16/10 = 1600/1000 = 1600x1000 :lol:

_________________
Brad Hawthorne
Product Manager
Nthusim Pty. Ltd. | www.nthusim.com

What about 1920 by 1080 on each projector, 5 across so 5 by 1920 for a total horizontal reolution of 9600?

What about 1920 by 1080 on each projector, 5 across so 5 by 1920 for a total horizontal reolution of 9600?

It's a maximum pixel width of 8000, so you'd have to downscale to 1600x900 for an Eyefinity 5x1L resolution of 8000x900. As far as the EDID hacking required to make this work, I tried it earlier tonight and all it succeeded to do is totally confuse me. It's so convoluted in the way you do it, that I liken it to computer voodoo. I never did figure it out for my particular setup. This is something NVIDIA's driver does significantly better than AMD. Doing a custom resolution in the NVIDIA control panel doesn't require downloading obscure applications.

I'm too used to using 6000x1920, so I reverted back to using 5x1P. A webpage viewing height of only 1200 was driving me nuts. 1920 is so much easier to read a webpage on. Well it's good to know that 5x1L is a viable option in any form at all. Proof of concept worked, so back to 5x1P for me. :)

_________________
Brad Hawthorne
Product Manager
Nthusim Pty. Ltd. | www.nthusim.com

Hmmm... so why the 8000 pixels width limitation? Will this be fixed in a graphics driver update?

Hmmm... so why the 8000 pixels width limitation? Will this be fixed in a graphics driver update?

It's a hardware limitation. The way GPUs are design they have a maximum pixel limit. Early cards were 2048x2048. It then went to 4096x4096. The last couple of years it ended up being 8192x8192 on NVIDIA and 8000x8000 for AMD. I've read about future cards having a 16kx16k maximum. Not sure if that is in place for the NVIDIA 500-series or the AMD 6000-series though. My particular hardware is 5870 E6.

This whole limitation change is what enabled triple screen gaming to exist. Back in DX8 you were limited to a maximum of 2048x2048. At that time that meant you were maxed out with the pixel size of two average displays -- average being 1024x768 at the time. Everything changed when DX9 hit. It uncapped things and soon video cards were allowing up to 4096x4096 and 8102x8102. Back then 3840x1024 was the triple-head standard and noone gamed above that resolution. Things obviously have changed with time.

You can find the pixel width limit by downloading the DirectX SDK and running DXCaps and looking through your card's spec in the application. At the moment I'm downloading the DX SDK again so I can screen capture what I mean from DXCaps.

_________________
Brad Hawthorne
Product Manager
Nthusim Pty. Ltd. | www.nthusim.com