Flickering issue ( rx 570)

[Yawza]

I have a strange issue for which i’ve found no solution. My Screen randomly flickers(goes black for 1s then returns to normal) while i’m in fullscreen mode watching videos or gaming. It’s a gpu issue of that im certain cause i’ve got older gpu i used to test this and it works fine. Thing is my gpu works perfectly fine in Windows but not in Linux. If anyone has any ideas i’d appreciate them, thanks!

[cscs]

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[Yawza]

System:
  Kernel: 5.8.16-2-MANJARO x86_64 bits: 64 compiler: N/A 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.8-x86_64 
  root=UUID=a761237c-df31-4203-a5ec-def1e94b53ee rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: Xfce 4.14.2 tk: Gtk 3.24.20 info: xfce4-panel wm: xfwm4 
  dm: LightDM 1.30.0 Distro: Manjaro Linux 
Machine:
  Type: Desktop Mobo: ASRock model: B450M-HDV R4.0 serial: <filter> 
  UEFI: American Megatrends v: P3.20 date: 07/31/2019 
CPU:
  Topology: 8-Core model: AMD Ryzen 7 2700X bits: 64 type: MT MCP arch: Zen+ 
  family: 17 (23) model-id: 8 stepping: 2 microcode: 800820D 
  L2 cache: 4096 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm 
  bogomips: 118209 
  Speed: 1889 MHz min/max: 2200/3700 MHz boost: enabled Core speeds (MHz): 
  1: 1887 2: 1885 3: 2064 4: 2064 5: 1912 6: 1953 7: 2192 8: 2191 9: 1890 
  10: 1889 11: 2042 12: 1885 13: 2189 14: 2151 15: 1986 16: 2189 
  Vulnerabilities: Type: itlb_multihit status: Not affected 
  Type: l1tf status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, STIBP: 
  disabled, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: AMD Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] 
  vendor: Sapphire Limited driver: amdgpu v: kernel bus ID: 09:00.0 
  chip ID: 1002:67df 
  Display: x11 server: X.Org 1.20.9 driver: amdgpu,ati unloaded: modesetting 
  alternate: fbdev,vesa display ID: :0.0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") 
  s-diag: 582mm (22.9") 
  Monitor-1: DVI-D-0 res: 1920x1080 dpi: 102 size: 476x268mm (18.7x10.6") 
  diag: 546mm (21.5") 
  OpenGL: renderer: Radeon RX 570 Series (POLARIS10 DRM 3.38.0 
  5.8.16-2-MANJARO LLVM 10.0.1) 
  v: 4.6 Mesa 20.1.8 direct render: Yes 
Audio:
  Device-1: AMD Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] 
  vendor: Sapphire Limited driver: snd_hda_intel v: kernel bus ID: 09:00.1 
  chip ID: 1002:aaf0 
  Device-2: AMD Family 17h HD Audio vendor: ASRock driver: snd_hda_intel 
  v: kernel bus ID: 0b:00.3 chip ID: 1022:1457 
  Sound Server: ALSA v: k5.8.16-2-MANJARO 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: ASRock driver: r8169 v: kernel port: f000 bus ID: 08:00.0 
  chip ID: 10ec:8168 
  IF: enp8s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 465.76 GiB used: 12.77 GiB (2.7%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 vendor: Kingston model: SKC2000M8500G size: 465.76 GiB 
  block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 
  serial: <filter> rev: S2780101 scheme: GPT 
Partition:
  ID-1: / raw size: 465.46 GiB size: 457.16 GiB (98.22%) 
  used: 12.77 GiB (2.8%) fs: ext4 dev: /dev/nvme0n1p2 
Swap:
  Alert: No Swap data was found. 
Sensors:
  System Temperatures: cpu: 49.1 C mobo: N/A gpu: amdgpu temp: 35 C 
  Fan Speeds (RPM): N/A gpu: amdgpu fan: 1570 
Info:
  Processes: 319 Uptime: 36m Memory: 15.56 GiB used: 2.61 GiB (16.8%) 
  Init: systemd v: 246 Compilers: gcc: N/A Packages: pacman: 1089 lib: 338 
  flatpak: 0 Shell: Bash v: 5.0.18 running in: xfce4-terminal inxi: 3.1.05 

[Fabby]

Welcome to Manjaro!

As the AMD drivers are built into the kernel, you should try another kernel version and as you seem to have a rather new CPU, 5.9 and 5.4 LTS would be high on my list.

• Print this page so you have it as a reference while in TTY2

• Log off

• Switch to TTY2 by pressing Ctrl+Alt+F2

• Log in there

• Execute:

  sudo mhwd-kernel --install linux54
  sudo mhwd-kernel --install linux59
  

• to ensure grub is showing, execute:

   sudo nano --backup /etc/default/grub
  

• Change (or add?) the following 3 lines:

  GRUB_TIMEOUT=3
  #GRUB_HIDDEN_TIMEOUT=0
  #GRUB_TIMEOUT_STYLE=hidden
  

  (3 or higher is fine, add the # before the lines above if those lines are present)

• Ctrl+X Y Enter to save if there is anything to save

• If you did save, execute:

   sudo update-grub
  

• Reboot

• Go to grub’s Advanced options

• Choose these kernels one by one and try them out one by one and see if that helps.