Bitcoin Forum

I've spent a lot of time trying to track down a wattman profile issue I'm having.  Figured I'd see if anyone else here has seen the same problem.

I'm running XFX RX 580s.  If I create a wattman profile for mining software, I can run that mining software one time and I'll get the desired hash rates.  Voltages, clock and memory frequencies are properly set.  Everything works great until I stop the software and try to restart it or run a different mining software for the same or even different algorithm.  On restart of the miner software, voltages, clock and memory frequencies are properly set but hash rates are about 5-10% lower than they should be.   For instance, I can mine Ethereum with Claymore at 30.5 MHz on first run.  If I stop and restart it, it only mines at at 28.4 MHz.  Again, it doesn't matter what miner I use with wattman profiles, they all exhibit the same problem.  Only a reboot resolves the problem.

If I run the miner without a wattman profile and allow it to set voltages, clock and memory, I can stop it and restart it all day long and I'll get full hash rates.  I can switch between various miners and they will all mine at full speed.

I submitted a bug report to AMD in regards to this as well.  I saw that 17.11.2 came out today and it mentioned fixing issues with voltages not being set properly with certain amd rx500 cards and was hoping it would resolve the problem but it does not.

Anyone else have the same problem?

I'd rather run Linux but the performance is 5-10% lower than windows and I haven't been able to figure out how to get it to be comparable.