Finally I can test and confirm that AMD has fixed the issue with slowdown at high DAG epochs for Vega/Polaris/Fiji cards. They are going to release new drivers in a few days.
When new drivers come out, will it work if i just copy OpenCL DLLs into miner folder?
I don't think so, the changes at the driver level.
Did AMD provide you with both Windows/Linux fixed drivers or just windows?
I test everything in Windows 7/10 currently, I don't have any info about new Linux drivers.
Within 24 hours I will release new version with Vega support and fan/overclock management for 17.7.2 drivers, for Windows. I will release Linux version a bit later.
Amazing news, thanks! Quick question - am I understanding correctly that 17.7.2 does not yet contain the hashrate drop fix, which is coming in the next driver release in a few days. And that is a separate matter than the next release of Claymore Miner that you're working on, which will add Vega support and fix management for driver versions 17.7.2 going forward. Thus, to mine with Polaris without hashrate drop and full management ability, you need both the next AMD driver release and next Claymore miner?