both GPU, run OpenCL benchmark, no problem.
...
I read Diablo Readme for GPU vector size, and diablo return opencl worksize 256, and apply it here.
I try use other kernel, seem mining no respond at all, like null?
this one on Catalyst 13.4, OpenCL 1.2
Uh, I think the "-k diakgcn" is a diagnostic kernel that doesn't actually submit any shares.
try using "-k phatk -v 2 -w 256"
"diakgcn" is the Diablo GCN kernel, it is designed for GPUs built on GCN technology (Radeon HD7000 serries)
CG miner auto-selects the best kernel for your hardware and rarely gets it wrong so just use the default kernel and you'll be fine.