Radeon RX5700 XT + ubuntu 20.04 LTS

[nitahake]

I have tried to install amdgpu and ROCm, but it only works with my processor Ryzen 9 3900X and can't recognize the gpu. 

GPU: AMD Radeon RX5700 XT

lsb_release -a:
  LSB Version:    core-11.1.0ubuntu2-noarch: security-11.1.0ubuntu2-noarch
 Distributor ID: Neon
 Description:    KDE neon User - Plasma 25th Anniversary Edition
 Release:        20.04
 Codename:       focal

uname -r:
  5.8.0-050800-generic

./hashcat.bin -I: (the latest beta version has been used and a few other)
OpenCL Info:
============

OpenCL Platform ID #1
  Vendor..: Intel(R) Corporation
  Name....: Intel(R) OpenCL
  Version.: OpenCL 1.2 LINUX

  Backend Device ID #1
    Type...........: CPU
    Vendor.ID......: 8
    Vendor.........: Intel(R) Corporation
    Name...........: AMD Ryzen 9 3900X 12-Core Processor
    Version........: OpenCL 1.2 (Build 37)
    Processor(s)...: 24
    Clock..........: 0
    Memory.Total...: 64329 MB (limited to 8041 MB allocatable in one block)
    Memory.Free....: 32132 MB
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 1.2.0.37

What should I do to make it run correctly?