Conflict between ATI on main board and NVIDIA card? This is the configuration with ASUS M4A78LT-M

Hello,

I have been trying to get this to work to no avail.

The last thing was to downgrade to 3.2 version with a litle bit more success but the CUDA calculations are failing. If I use the NVIDIA board as graphic output, the screen comes up all mangle. If I use the main board (ATI) as graphic output, the screen is ok with both version of the ATI driver ( nominal and FireGL). I got the same bad calculations in both cases. Even the cppIntegration program is indicating FAILED.

Is there a conflict possible if the main board has an ATI chipset? I am beginning to think so.

My setup is :

MotherBoard: ASUS M4A78LT-M

Graphic Board : Geforce GTX 260 or Geforce 9600 GSO

PSU : ULTRA LS 600

Memory : 8 GB

OS : Ubuntu 10.04 LTS

Anyone with the same configuration?

Edit: I did a test with my old config with Slackware which used to work with the MSI board and does not work with the ASUS board : conclusion = bad board for this application.

ATI chipset == NorthBridge AMD790

This is an ouput from lspci:

01:05.0 VGA compatible controller: ATI Technologies Inc 760G [Radeon 3000]

	Subsystem: ASUSTeK Computer Inc. Device 8388

	Flags: bus master, fast devsel, latency 0, IRQ 27

	Memory at c0000000 (32-bit, prefetchable) 

	I/O ports at c000 

	Memory at f9ff0000 (32-bit, non-prefetchable) 

	Memory at f9e00000 (32-bit, non-prefetchable) 

	Capabilities: [50] Power Management version 3

	Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+

	Kernel driver in use: fglrx_pci

	Kernel modules: fglrx, radeon

02:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX 260] (rev a1)

	Subsystem: XFX Pine Group Inc. Device 2393

	Flags: bus master, fast devsel, latency 0, IRQ 18

	Memory at fd000000 (32-bit, non-prefetchable) 

	Memory at d0000000 (64-bit, prefetchable) 

	Memory at fa000000 (64-bit, non-prefetchable) 

	I/O ports at dc00 

	[virtual] Expansion ROM at fea80000 [disabled] 

	Capabilities: [60] Power Management version 3

	Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-

	Capabilities: [78] Express Endpoint, MSI 00

	Capabilities: [100] Virtual Channel <?>

	Capabilities: [128] Power Budgeting <?>

	Capabilities: [600] Vendor Specific Information <?>

	Kernel driver in use: nvidia

	Kernel modules: nvidia, nvidia-current, nvidiafb, nouveau

Any chance of getting the standalone CUDA card to operate correctly in this environnment?

Would a newer CUDA card work? GTX 5xx ?

I just gave up and order a replacement board with and nvidia chipset.

Edit 9-jun-2011

Finally got a new board M4N68T-M V2 with nvidia chipset nForce 630a.

Got it to work as a display + CUDA.

Still no luck as a standalone CUDA using the internal graphic for display,which is the configuration I had before.