“* Added parameter --maxdualimpact
to limit the impact of dual mining to the hashrate of the primary algrorithm. Can be a comma separated list of values, * can be used to skip over a card (what means using its default).
Important note: For many Vega based GPUs the default is too low to start dual mining at all. Use a very high value (of e.g. 25.0 ) to start it.“