i have a 9600gt and a gtx285 on my computer
both graphics cards work when connect to a monitor
but if shutdown 1 of them, only use 1 card for display
the DeviceQuery.exe only return 1 CUDA supported device
and i checked the return value of cudaGetDeviceCount(), it does return 1 not 2
my intension is to avoid the watchdog problem on windows
so I wanna use 9400gt as primary graphics card.
and gtx285 only for CUDA,how can i get it actived without connecting to a monitor?