Messed with so many settings I don’t know which end is up. So, I reinstalled a clean OS with KDE Plasma. Fired up minecraft and graphic tearing was still there. Game ran for a while zooming around and then it finally crapped out. Here was the amdgpu output from the journal
Sep 01 15:09:47 acefour-1 kernel: [drm] amdgpu kernel modesetting enabled.
Sep 01 15:09:47 acefour-1 kernel: amdgpu: Virtual CRAT table created for CPU
Sep 01 15:09:47 acefour-1 kernel: amdgpu: Topology: Add CPU node
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: enabling device (0006 -> 0007)
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 0 <nv_common>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 1 <gmc_v10_0>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 2 <navi10_ih>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 3 <psp>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 4 <smu>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 5 <dm>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 6 <gfx_v10_0>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 7 <sdma_v5_2>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 8 <vcn_v3_0>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: detected ip block number 9 <jpeg_v3_0>
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Fetched VBIOS from VFCT
Sep 01 15:09:47 acefour-1 kernel: amdgpu: ATOM BIOS: 113-67L96SSD1-D02
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: vgaarb: deactivate vga console
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Trusted Memory Zone (TMZ) feature disabled as experimental (default)
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: VRAM: 10224M 0x0000008000000000 - 0x000000827EFFFFFF (10224M used)
Sep 01 15:09:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GART: 512M 0x0000000000000000 - 0x000000001FFFFFFF
Sep 01 15:09:47 acefour-1 kernel: [drm] amdgpu: 10224M of VRAM memory ready
Sep 01 15:09:47 acefour-1 kernel: [drm] amdgpu: 32053M of GTT memory ready.
Sep 01 15:09:48 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 0 exp: 80000000
Sep 01 15:09:48 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 0 exp: 80000000
Sep 01 15:09:48 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 0 exp: 80000000
Sep 01 15:09:48 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 0 exp: 80000000
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: STB initialized to 2048 entries
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] Loading DMUB firmware via PSP: version=0x02020020
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Found VCN firmware Version ENC: 1.33 DEC: 4 VEP: 0 Revision: 8
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: reserve 0xa00000 from 0x827d000000 for PSP TMR
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: RAS: optional ras ta ucode is not available
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: SECUREDISPLAY: optional securedisplay ta ucode is not available
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: smu driver if version = 0x0000000e, smu fw if version = 0x00000012, smu fw program = 0, version = 0x00413e00 (65.62.0)
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: SMU driver if version not matched
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: use vbios provided pptable
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: SMU is initialized successfully!
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] Display Core v3.2.334 initialized on DCN 3.0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] DP-HDMI FRL PCON supported
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] DMUB hardware initialized: version=0x02020020
Sep 01 15:09:49 acefour-1 kernel: snd_hda_intel 0000:03:00.1: bound 0000:03:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu])
Sep 01 15:09:49 acefour-1 kernel: amdgpu: HMM registered 10224MB device memory
Sep 01 15:09:49 acefour-1 kernel: kfd kfd: amdgpu: Allocated 3969056 bytes on gart
Sep 01 15:09:49 acefour-1 kernel: kfd kfd: amdgpu: Total number of KFD nodes to be created: 1
Sep 01 15:09:49 acefour-1 kernel: amdgpu: Virtual CRAT table created for GPU
Sep 01 15:09:49 acefour-1 kernel: amdgpu: Topology: Add dGPU node [0x73df:0x1002]
Sep 01 15:09:49 acefour-1 kernel: kfd kfd: amdgpu: added device 1002:73df
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: SE 2, SH per SE 2, CU per SH 10, active_cu_number 36
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring gfx_0.0.0 uses VM inv eng 0 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring gfx_0.1.0 uses VM inv eng 1 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 4 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 5 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 6 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 7 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 8 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 9 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 10 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 11 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring kiq_0.2.1.0 uses VM inv eng 12 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring sdma0 uses VM inv eng 13 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring sdma1 uses VM inv eng 14 on hub 0
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring vcn_dec_0 uses VM inv eng 0 on hub 8
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring vcn_enc_0.0 uses VM inv eng 1 on hub 8
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring vcn_enc_0.1 uses VM inv eng 4 on hub 8
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring jpeg_dec uses VM inv eng 5 on hub 8
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Using BACO for runtime pm
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: [drm] Registered 6 planes with drm panic
Sep 01 15:09:49 acefour-1 kernel: [drm] Initialized amdgpu 3.64.0 for 0000:03:00.0 on minor 1
Sep 01 15:09:49 acefour-1 kernel: fbcon: amdgpudrmfb (fb0) is primary device
Sep 01 15:09:49 acefour-1 kernel: amdgpu 0000:03:00.0: [drm] fb0: amdgpudrmfb frame buffer device
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Dumping IP State
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Dumping IP State Completed
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] AMDGPU device coredump file has been created
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] Check your /sys/class/drm/card1/device/devcoredump/data
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring gfx_0.1.0 timeout, signaled seq=119790, emitted seq=119792
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Process information: process kwin_wayland pid 1156 thread kwin_wayla:cs0 pid 1203
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Starting gfx_0.1.0 ring reset
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Ring gfx_0.1.0 reset failed
Sep 01 15:31:46 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU reset begin!
Sep 01 15:31:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: MODE1 reset
Sep 01 15:31:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU mode1 reset
Sep 01 15:31:47 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU smu mode1 reset
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU reset succeeded, trying to resume
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: PSP is resuming...
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:58 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:31:59 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:00 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:01 acefour-1 plasmashell[1439]: amdgpu: The CS has cancelled because the context is lost. This context is innocent.
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:02 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: psp reg (0x16063) wait timed out, mask: 80000000, read: 200000 exp: 80000000
Sep 01 15:32:03 acefour-1 kernel: [drm:psp_v11_0_memory_training [amdgpu]] *ERROR* send training msg failed.
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Failed to process memory training!
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: resume of IP block <psp> failed -62
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU reset end with ret = -62
Sep 01 15:32:03 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU Recovery Failed: -62
Sep 01 15:32:13 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Dumping IP State
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Dumping IP State Completed
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] AMDGPU device coredump file has been created
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: [drm] Check your /sys/class/drm/card1/device/devcoredump/data
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: ring gfx_0.1.0 timeout, signaled seq=119792, emitted seq=119792
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Process information: process kwin_wayland pid 1156 thread kwin_wayla:cs0 pid 1203
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Starting gfx_0.1.0 ring reset
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: Ring gfx_0.1.0 reset failed
Sep 01 15:32:14 acefour-1 kernel: amdgpu 0000:03:00.0: amdgpu: GPU reset begin!