for RVN don't use parameter -a
use just
-coin rvn
If I do that:
-a: Please add -a ALGONAME to your command-line. Auto-detect is not possible.
Use latest TT-Miner
TT-Miner.exe -coin RVN -poolinfo -luck -P stratum+tcp://your-wallet.worker:x@pool:port
20:50:19 Pool[D0]: Working on Block#: 1220142
20:50:21 Miner: GPU[00]: Allocate cache: 38.00 MB - available: 2.958 GB
20:50:21 Miner: GPU[00]: Allocate DAG: 2.432 GB - available: 2.958 GB
20:50:21 Miner: Error ******** GPU[00]: CudaCompileError: 7 at position 53
20:50:21 Miner: Error ******** All GPUs are disabled. TT-Miner cannot continue and will exit now