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No matter what I set the intensity to the HW: (hardware errors) constantly increments, and it never submits a share. It does not do this with the older version of 4.1. I've tried it on 12 different systems all with the same result. Curious if you have any insight.
Here's my startup line:
export GPU_MAX_ALLOC_PERCENT=100; export GPU_USE_SYNC_OBJECTS=1; ./sgminer -o stratum+tcp://...(redacted) --shaders 2048 -I 18 --no-submit-stale