anyone knows if core + mem clock and voltages can be set in ubuntu these days? i tried it some years ago and it was not working thats why i used windows... would like to try ubuntu again if someone knows if it work
Yes. I have Polaris GPU's mining in Arch Linux and set the core/mem overclocks, voltages and power limit with the latest Phoenix miner config file. You can also set them through the terminal using rocm-smi.
https://www.blog.albertbling.com/posts/how-to-mine-ethereum-on-linux/