bminer -uri ethash://0x6D2a79507C67A8ACBc01D16a4858469677792C39.worker@eth-us-west1.nanopool.org:9999 -uri2 handshake://hs1qw2a7qm69j8sj030sfqa97p5nxsqgdxv74da5z2.t@hns.f2pool.com:6000 -devices amd:1

gives me an 'invalid value "handshake://hs1qw2a7qm69j8sj030sfqa97p5nxsqgdxv74da5z2.t@hns.f2pool.com:6000" for flag -uri2: Unsupported scheme' error.

This is a computer with AMD and NVIDIA gpus installed.