SLI Problems in games running Widescreen Resolution

[dworley]

The only problem I am experienceing with my SLI setup is that when I set any Widescreen resolution in HL2/CS:S the screen looses sync , like the refresh rate is wrong.

I have tried 1600x1050 and 1600x900 with all recent drivers 66.93, 67.03, 70.90, 71.20 and 71.24 using a Dell 2005FPW. If I set any 4:3 aspect ratio (1280x1024) it works fine. Also tried my Dell 20000FP at 4:3 1600x1200 with no problems.

Note: On my Shuttle SB75G2 using a BFG 6800GT OC with the Dell 2005FPW I can run 1600x1050 in HL2 / CS:S no problems with any recent driver.

I suspect this is a driver issue with SLI running Widescreen rsolutions in games and wanted to see if anyone else was having this problem?

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ASUS A8N-SLI DELUXE (bios 1003.005)
Athlon 64 FX-55
512mb X 2 Corsair XMS 3200C2
BFG 6800GT OC x 2 / SLI MODE
OCZ ModStream 520W
Thermaltake Tsunami Dream case
Thermaltake Big Water cooling kit
Arctic Cooling NV5 Silencer (2)

 

[DrRios]

Hi:

I have the same trouble.

the Nvidia driver works different if you have a "analog connection - with the adapter" vs a DVI connection. Some tabs where turn "OFF" by Nvidia in the Nview DESKTOP MANAGER when you use the DVI connector and are not being supported until the release of the next set of drivers.

I have a Velocity Micro Raptor dual PCI-e with 6800 GT (2) and SLI "ON"

The machine will work fine if the monitor if I use an old dual monitor that has both DVI and "analog" connectors, even when connected to DVI.

If the monitor is pure digital, or one of the lattest model. The card will identify this and will use the Pure DVI driver subrutine. This has advance timming "off". As a result SLI only support high definition monitor at their native resolution (Apple Cine, HDTV -LCD, Plasma and some Viewsonic Monitors). Monitor with 1920x1200 or more. Changing to a lower resolution will turn the screen into garbaje. OUT OF SYNC.

Nvidia knows about this and have erase all connects in their SLI site. If you have a SLI and DVI monitor try turning SLI "OFF" in the driver (NVIDIA TAB) reboot and then try to turn it back "ON" you will not be able to. So be very careful. Then you will get the two monitor like is mentioned here. The only was to go back is using system restore.

Playing games in those pure digital monitors can not be done with actual driver for SLI, changing to a lower resolution (most games are 1024 or less) will result in a garbage screen. The ystem will work fine if SLI is turn "off" but the other card will be there for the ride.

The only solution is to use a LCD monitor with dual connectors (that has both connector "analog and digital" ) or a CRT

The idea of SLI was to run games at higher resolution but Nvidia put the system put before the drivers where ready.

NVIDIA has failed miserably with this release.....
Text

 

[DrRios]

the new Beta driver was of no help for me and the Cinema Apple

After install the machine insisted ahd 6 monitors connected and came on with SLI"OFF" and refused to turn back "ON"

thanks good for system restore...

 

[DrRios]

www.3dchipset.com

 

[DrRios]

Nvidia has a new driver 71.89
placed in the web 2 -5 days ago

Is the first driver that will allow to turn "off" SLI in a ASUS Deluxe from the driver and back "on" with no difficulty and no lock.

this will allow Apple Cinema used to turn SLI "off" so they can play games in a lower resolution than native.

SLI work fine in native 1900x1200 resolution but most games do not go to this resolution.

Nvidia in the Release Notes for this driver for the first time admits there is an issue with Apple Cinema monitors and SLI and recommends to use NVIDIA 6800 Ultra with 512 MB ( and pass on SLI) for now...

http://download.nvidia.com/Windows/71.89/71.89_ForceWare_Release_Notes.pdf

RELEASE NOTES FROM NVIDIA FOR DRIVER 71.89

 

[Ackmed]

Are you talking to yourself.. 4 post in a row.

Are you sure it works in 1920x1200? It doesnt say it has fixed that res, but it did fix two other WS res'. Hopefully that means they have.

 

[calcio109]

i'm not sure what drrios is getting at, but the 2005fpw that you have has both DVI and DB-15 analog inputs (and S-video and composite). one thing i did notice is that you mentioned you're running the game at 1600x1050. maybe it's a typo, but the 2005fpw's native resolution is 1680x1050. if you're actually running the game at 1600x1050, try using the standard 16:10 ratio. might help, might not.