-d 1,2 is not the correct thing you need.
You need to whitelist/select the device types with:
--opencl-device-types (or short -D), capital letter "D"
-D 1,2 means that both GPUs and CPUs are whitelisted
You need to whitelist/select the device types with:
--opencl-device-types (or short -D), capital letter "D"
-D 1,2 means that both GPUs and CPUs are whitelisted