i have 13gpu rig: 6x hd7850, 2x r9 270, 5x rx550
1.6.7 failed on both r9 270
another 11 gpu working good
version 1.5.9 working good with all 13 gpu
how i can fix this
I think R9 cards are supposed to be kernel 2, not kernel 1.
Thats right, you should set it by hand to use kernel 2 in gpu_conf
I tried my r7 370 with both version of kernels and can't start it, so this is not problem about kernels, it looks like a some kind of bug in this new versions of miner.
Same for me, 370 with last version don't work, with past version on the same sysyem, 1.60 for example, working without problem.