[Bug 207005] New: amd polaris (rx 470) strange instant artifacts/graphical corruptions

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=207005

            Bug ID: 207005
           Summary: amd polaris (rx 470) strange instant
                    artifacts/graphical corruptions
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.5.13 and 5.6rc7
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: destekerdemonder at gmail.com
        Regression: No

Created attachment 288099
  --> https://bugzilla.kernel.org/attachment.cgi?id=288099&action=edit
journalctl dump drm.debug=6 grub set

my gpu: msi radeon rx 470 gaming x 4g
my cpu: amd r7 3700x
my motherboard: asus prime x370-pro

Tested kernels: user-pc 5.5.13-1-MANJARO, 5.6rc7, linux-next git,
amd-staging-drm-next, drm-next from
"https://cgit.freedesktop.org/~agd5f/linux/" link. 

Tried grub settings(not solution): "amdgpu.aspm=0 amdgpu.bapm=0
amdgpu.compute_multipipe=0 amdgpu.cwsr_enable=0 amdgpu.dpm=0 amdgpu.discovery=0
amdgpu.exp_hw_support=1 amdgpu.gpu_recovery=0 amdgpu.lbpw=0 amdgpu.msi=0
amdgpu.pcie_gen2=0 amdgpu.noretry=0 amdgpu.ras_enable=0 amdgpu.runpm=0
amdgpu.sched_policy=2 amdgpu.sdma_phase_quantum=0 ccp.max_devs=0 acpi_osi=Linux
video=efifb:nobgrt"

Also tried add "export AMD_DEBUG=nodcc" to '/etc/environment' Not solution.

Also tried iommu grub settings. Not solution. 

I'm using picom compositor on startup of xfce. Problem (A) occurs when using
picom.( picom stable version v7.5 from manjaro ) I will add a video's
screenshot for this. I'm using manjaro xfce testing branch. 

Problem (B) occurs every time.

My other links for this problem:

https://forum.manjaro.org/t/amdgpu-polaris-opengl-vulkan-starting-artifact/130501

Video:

https://streamable.com/85qxm

(A) Instant graphic corruption occurs during login ( i will add a video's
screenshot for this ) This problem occurs picom autostarted xfce or kde login. 

My startup setttings for picom:

"picom --experimental-backends --backend glx --use-damage
--glx-no-rebind-pixmap --glx-no-stencil --unredir-if-possible --vsync -b"

I found temporary fix for this problem. I changed picom autostart with this:
"sh -c "sleep 3 && picom --experimental-backends --backend glx --use-damage
--glx-no-rebind-pixmap --glx-no-stencil --unredir-if-possible --vsync -b""

(B) Instant screen corruption or artifact for game starting. I see this on two
games. Dote underlors and albion online. I will add a video's screenshot for
this.

I'm added attachment. Dump of journalctl drm.debug=6 grub set.

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