There is an issue with 0.7.5 version:
random polaris video card in the system stops mining (showing 0 hashes) and starts to warm up until the thermal protection is triggered, driver 19.12.2. On version 0.7.1 everything is stable.
test system: RX580+RX580+Vega56
algo: daggerhashimoto
Hi! Would this be immediately from the start or after mining a while? Its hard to see what the miner could do to increase pressure on the card as you describe without the driver comm with card being busted. If it happens immediately, can you run with debug and pm me the output? If not immediately, any other clues about what is happening when you run into these situations? Also, does the miner detect the gpu as DEAD or not?
Edit: last, are these 4GB or 8GB 580s, or a mix even?