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:
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?