Radeon and Nvidia same computer?

[sokol815]

I am trying to figure out how I can get my Windows 7 machine to use my GT 640 to drive the monitors and use my Gigabyte HD 7950 R2 (Bios flashed to F43) to do litecoin mining... I have tried all the different platform commands in cgminer that I could think of. Has anyone else had any problems with getting a similar build setup?

I should have gone to bed 3 hours ago.... 

[Edvin512]

what i did was install the nvidia card first, then the ati, used current nvidia and 13.3 beta 4 i believe on ati, working like a champ

[triciam]

Does cgminer see both cards? You can tell it which card to use GPU 0 vs GPU 1

run cgminer with the -n option to have it show you all the cards it sees and which number they are.

Then I think you can use -d # to chose or set it up in the config.

[Edvin512]

cgminer automatically picks the ati card for me, haventh tried the geforce, use that for browsing and gaming

[sokol815]

ok, I switched one of the monitors to the 7950 and then ran cgminer.exe -n

It is now detecting that it can work with the 7950.

this is what cgminer.exe -n gives me:

Code:

D:\Programs\cgminer-3.0.0-windows>cgminer.exe -n
 [2013-05-02 10:02:47] CL Platform 0 vendor: NVIDIA Corporation

 [2013-05-02 10:02:47] CL Platform 0 name: NVIDIA CUDA
 [2013-05-02 10:02:47] CL Platform 0 version: OpenCL 1.1 CUDA 4.2.1

 [2013-05-02 10:02:47] Platform 0 devices: 1
 [2013-05-02 10:02:47]  0       GeForce GT 640
 [2013-05-02 10:02:47] CL Platform 1 vendor: Advanced Micro Devices, Inc.

 [2013-05-02 10:02:47] CL Platform 1 name: AMD Accelerated Parallel Processing

 [2013-05-02 10:02:47] CL Platform 1 version: OpenCL 1.2 AMD-APP (1124.2)

 [2013-05-02 10:02:47] Platform 1 devices: 1
 [2013-05-02 10:02:47]  0       Tahiti
 [2013-05-02 10:02:47] Failed to ADL_Adapter_ID_Get. Error -1

 [2013-05-02 10:02:47] Failed to ADL_Adapter_ID_Get. Error -1

 [2013-05-02 10:02:47] Failed to ADL_Adapter_ID_Get. Error -1

 [2013-05-02 10:02:47] Failed to ADL_Adapter_ID_Get. Error -1

 [2013-05-02 10:02:47] GPU 0 AMD Radeon HD 7900 Series hardware monitoring enabl
ed
 [2013-05-02 10:02:47] 1 GPU devices max detected
 [2013-05-02 10:02:47] USB all: found 6 devices - listing known devices

 [2013-05-02 10:02:47] No known USB devices

D:\Programs\cgminer-3.0.0-windows>pause
Press any key to continue . . .

of course the idea of having both cards is to not have to run monitors off of the mining card... would the 75 ohm resistor trick work to trick it into working correctly?

setting -d 1 results in cgminer saying I have "set a card that does not exist" same with -d 2... how would I fix that?

[Edvin512]

i use a vga cable connected to the radeon to setup overclocking, then disable the monitor on ati card before mining