Please help with rx580 card

[AVert]

Thank for great tool!!!!

I try to set memory clock 2150 and core clock 1190
memory clock writing but miner work with 4mh then check memory works with 300mh
and core clock set only highest value 1380 i can not use lover value. get error like value not in range (((

Adapter 1: Ellesmere [Radeon RX 470/480]
Device Topology: 4:0:0
Vendor ID: 4098
Device ID: 26591
Current CoreClock: 1339 MHz
Current MemoryClock: 2000 MHz
Core Overdrive: 0
Memory Overdrive: 0
Current BusSpeed: 0
Current BusLanes: 1
Temperature: 57 C
Critical temperature: 0 C
FanSpeed Min (Value): 0
FanSpeed Max (Value): 255
Current FanSpeed: 62.7451%
Controlled FanSpeed: no
Core clocks:
300MHz
600MHz
900MHz
1179MHz
1252MHz
1295MHz
1339MHz
1380MHz
Memory Clocks:
300MHz
1000MHz
2000MHz

what does it mean performance level?

inxi -SG
System: Host: buddhaHome Kernel: 4.13.0-16-generic x86_64 bits: 64 Desktop: Gnome 3.26.1 Distro: Ubuntu 17.10
Graphics: Card-1: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX 470/480]
Card-2: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX 470/480]
Display Server: x11 (X.Org 1.19.5 )
drivers: modesetting,fbdev,ati,vesa,vmware,radeon,nouveau,intel,amdgpu
Resolution: 1920x1080@60.00hz
OpenGL: renderer: Radeon RX 580 Series version: 4.5.13496

Cards are flashed with another timings under windows with this values give 30mh under linux not working overcloking with miner (((

[matszpk]

Known problems. First problem with memory clocking, this is a problem with same AMDGPU(-PRO) drivers (bug in same drivers, I don't know what is bug). Second problem with lower core clocks - amdcovc allow to set values from 100% to 120% of value nominal core clock (allow only to overclock core).