I have same issue.
So I will stick with driver 18.12.1 (last time custom fan and Zero RPM worked) until they fix it.
If I try to run custom fan curves with newer drivers my fans run at 1300(!!!) RPM as lowest possible value. That is what they usually ran at in some games. My CPUs water cooler (pump) used to the loudest part when computer was idle. With the newer drivers its the GPU.
I have a Sapphire V56 Pulse.
Sapphire Trixx started to work properly, I can now set fan curve as I like- but there is still no 0 RPM mode.
Lowest you can get on V56 Pulse is 500+ RPM and it's silent and acceptable.
Temporary fixed that problem this way.
So AMD thinks people want the fans to run all the time in manual mode?
I don't have my RX 580 installed and my other cards don't have these Wattman settings. Can someone confirm what these fans are really doing under this new driver?
According to the release notes in the 19.2.3 driver it sounds like that is by design. I don't get it. They sure are not listening to their users. I hope I'm reading it wrong or something. I'm sure someone will confirm.
Yep, zero rpm switch dissapear when you switch fans from auto to manual
and what Im showing right now is the lowest you can get on curve, thats damn stupid