Test 2, no external monitor connected Another system halt with the following error: Apr 6 12:51:59 rct14s kernel: [11686.738468] amdgpu 0000:33:00.0: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out I am now re-enabling "amdgpu.dcdebugmask=0x10" since that seemed to be running quite well. kern.log | grep amdgpu: Apr 6 09:37:17 rct14s kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.3.0-060300rc5-generic root=UUID=41d8f993-282a-48a5-b355-6f537a3a17ab ro quiet splash amdgpu.sg_display=0 vt.handoff=7 Apr 6 09:37:17 rct14s kernel: [ 0.004000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.3.0-060300rc5-generic root=UUID=41d8f993-282a-48a5-b355-6f537a3a17ab ro quiet splash amdgpu.sg_display=0 vt.handoff=7 Apr 6 09:37:17 rct14s kernel: [ 5.089998] [drm] amdgpu kernel modesetting enabled. Apr 6 09:37:17 rct14s kernel: [ 5.105793] amdgpu: Virtual CRAT table created for CPU Apr 6 09:37:17 rct14s kernel: [ 5.105810] amdgpu: Topology: Add CPU node Apr 6 09:37:17 rct14s kernel: [ 5.105975] amdgpu 0000:33:00.0: enabling device (0006 -> 0007) Apr 6 09:37:17 rct14s kernel: [ 5.108157] amdgpu 0000:33:00.0: amdgpu: Fetched VBIOS from VFCT Apr 6 09:37:17 rct14s kernel: [ 5.108161] amdgpu: ATOM BIOS: 113-REMBRANDT-X37 Apr 6 09:37:17 rct14s kernel: [ 5.112655] amdgpu 0000:33:00.0: vgaarb: deactivate vga console Apr 6 09:37:17 rct14s kernel: [ 5.112658] amdgpu 0000:33:00.0: amdgpu: Trusted Memory Zone (TMZ) feature disabled as experimental (default) Apr 6 09:37:17 rct14s kernel: [ 5.112662] amdgpu 0000:33:00.0: amdgpu: PCIE atomic ops is not supported Apr 6 09:37:17 rct14s kernel: [ 5.112720] amdgpu 0000:33:00.0: amdgpu: VRAM: 1024M 0x000000F400000000 - 0x000000F43FFFFFFF (1024M used) Apr 6 09:37:17 rct14s kernel: [ 5.112723] amdgpu 0000:33:00.0: amdgpu: GART: 1024M 0x0000000000000000 - 0x000000003FFFFFFF Apr 6 09:37:17 rct14s kernel: [ 5.112725] amdgpu 0000:33:00.0: amdgpu: AGP: 267419648M 0x000000F800000000 - 0x0000FFFFFFFFFFFF Apr 6 09:37:17 rct14s kernel: [ 5.113338] [drm] amdgpu: 1024M of VRAM memory ready Apr 6 09:37:17 rct14s kernel: [ 5.113343] [drm] amdgpu: 15421M of GTT memory ready. Apr 6 09:37:17 rct14s kernel: [ 5.115154] amdgpu 0000:33:00.0: amdgpu: Will use PSP to load VCN firmware Apr 6 09:37:17 rct14s kernel: [ 5.284417] amdgpu 0000:33:00.0: amdgpu: RAS: optional ras ta ucode is not available Apr 6 09:37:17 rct14s kernel: [ 5.296530] amdgpu 0000:33:00.0: amdgpu: RAP: optional rap ta ucode is not available Apr 6 09:37:17 rct14s kernel: [ 5.296533] amdgpu 0000:33:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available Apr 6 09:37:17 rct14s kernel: [ 5.298687] amdgpu 0000:33:00.0: amdgpu: SMU is initialized successfully! Apr 6 09:37:17 rct14s kernel: [ 5.326714] snd_hda_intel 0000:33:00.1: bound 0000:33:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) Apr 6 09:37:17 rct14s kernel: [ 5.441665] kfd kfd: amdgpu: Allocated 3969056 bytes on gart Apr 6 09:37:17 rct14s kernel: [ 5.441734] amdgpu: sdma_bitmap: 3 Apr 6 09:37:18 rct14s kernel: [ 5.481933] amdgpu: HMM registered 1024MB device memory Apr 6 09:37:18 rct14s kernel: [ 5.482032] amdgpu: SRAT table not found Apr 6 09:37:18 rct14s kernel: [ 5.482033] amdgpu: Virtual CRAT table created for GPU Apr 6 09:37:18 rct14s kernel: [ 5.482249] amdgpu: Topology: Add dGPU node [0x1681:0x1002] Apr 6 09:37:18 rct14s kernel: [ 5.482252] kfd kfd: amdgpu: added device 1002:1681 Apr 6 09:37:18 rct14s kernel: [ 5.482272] amdgpu 0000:33:00.0: amdgpu: SE 1, SH per SE 2, CU per SH 6, active_cu_number 12 Apr 6 09:37:18 rct14s kernel: [ 5.482394] amdgpu 0000:33:00.0: amdgpu: ring gfx_0.0.0 uses VM inv eng 0 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482397] amdgpu 0000:33:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482399] amdgpu 0000:33:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482401] amdgpu 0000:33:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 5 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482403] amdgpu 0000:33:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 6 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482405] amdgpu 0000:33:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 7 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482407] amdgpu 0000:33:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 8 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482408] amdgpu 0000:33:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 9 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482410] amdgpu 0000:33:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 10 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482412] amdgpu 0000:33:00.0: amdgpu: ring kiq_2.1.0 uses VM inv eng 11 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482414] amdgpu 0000:33:00.0: amdgpu: ring sdma0 uses VM inv eng 12 on hub 0 Apr 6 09:37:18 rct14s kernel: [ 5.482415] amdgpu 0000:33:00.0: amdgpu: ring vcn_dec_0 uses VM inv eng 0 on hub 1 Apr 6 09:37:18 rct14s kernel: [ 5.482417] amdgpu 0000:33:00.0: amdgpu: ring vcn_enc_0.0 uses VM inv eng 1 on hub 1 Apr 6 09:37:18 rct14s kernel: [ 5.482419] amdgpu 0000:33:00.0: amdgpu: ring vcn_enc_0.1 uses VM inv eng 4 on hub 1 Apr 6 09:37:18 rct14s kernel: [ 5.482421] amdgpu 0000:33:00.0: amdgpu: ring jpeg_dec uses VM inv eng 5 on hub 1 Apr 6 09:37:18 rct14s kernel: [ 5.484691] [drm] Initialized amdgpu 3.52.0 20150101 for 0000:33:00.0 on minor 0 Apr 6 09:37:18 rct14s kernel: [ 5.492344] fbcon: amdgpudrmfb (fb0) is primary device Apr 6 09:37:18 rct14s kernel: [ 5.599548] amdgpu 0000:33:00.0: [drm] fb0: amdgpudrmfb frame buffer device Apr 6 12:51:59 rct14s kernel: [11686.738468] amdgpu 0000:33:00.0: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out Apr 6 12:52:41 rct14s kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.3.0-060300rc5-generic root=UUID=41d8f993-282a-48a5-b355-6f537a3a17ab ro quiet splash amdgpu.dcdebugmask=0x10 amdgpu.sg_display=0 vt.handoff=7 Apr 6 12:52:41 rct14s kernel: [ 0.004000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.3.0-060300rc5-generic root=UUID=41d8f993-282a-48a5-b355-6f537a3a17ab ro quiet splash amdgpu.dcdebugmask=0x10 amdgpu.sg_display=0 vt.handoff=7 Apr 6 12:52:41 rct14s kernel: [ 5.288146] [drm] amdgpu kernel modesetting enabled. Apr 6 12:52:41 rct14s kernel: [ 5.295933] amdgpu: Virtual CRAT table created for CPU Apr 6 12:52:41 rct14s kernel: [ 5.295944] amdgpu: Topology: Add CPU node Apr 6 12:52:41 rct14s kernel: [ 5.296041] amdgpu 0000:33:00.0: enabling device (0006 -> 0007) Apr 6 12:52:41 rct14s kernel: [ 5.297703] amdgpu 0000:33:00.0: amdgpu: Fetched VBIOS from VFCT Apr 6 12:52:41 rct14s kernel: [ 5.297705] amdgpu: ATOM BIOS: 113-REMBRANDT-X37 Apr 6 12:52:41 rct14s kernel: [ 5.302160] amdgpu 0000:33:00.0: vgaarb: deactivate vga console Apr 6 12:52:41 rct14s kernel: [ 5.302162] amdgpu 0000:33:00.0: amdgpu: Trusted Memory Zone (TMZ) feature disabled as experimental (default) Apr 6 12:52:41 rct14s kernel: [ 5.302164] amdgpu 0000:33:00.0: amdgpu: PCIE atomic ops is not supported Apr 6 12:52:41 rct14s kernel: [ 5.302200] amdgpu 0000:33:00.0: amdgpu: VRAM: 1024M 0x000000F400000000 - 0x000000F43FFFFFFF (1024M used) Apr 6 12:52:41 rct14s kernel: [ 5.302202] amdgpu 0000:33:00.0: amdgpu: GART: 1024M 0x0000000000000000 - 0x000000003FFFFFFF Apr 6 12:52:41 rct14s kernel: [ 5.302203] amdgpu 0000:33:00.0: amdgpu: AGP: 267419648M 0x000000F800000000 - 0x0000FFFFFFFFFFFF Apr 6 12:52:41 rct14s kernel: [ 5.302671] [drm] amdgpu: 1024M of VRAM memory ready Apr 6 12:52:41 rct14s kernel: [ 5.302673] [drm] amdgpu: 15421M of GTT memory ready. Apr 6 12:52:41 rct14s kernel: [ 5.304050] amdgpu 0000:33:00.0: amdgpu: Will use PSP to load VCN firmware Apr 6 12:52:42 rct14s kernel: [ 5.469315] amdgpu 0000:33:00.0: amdgpu: RAS: optional ras ta ucode is not available Apr 6 12:52:42 rct14s kernel: [ 5.479682] amdgpu 0000:33:00.0: amdgpu: RAP: optional rap ta ucode is not available Apr 6 12:52:42 rct14s kernel: [ 5.479689] amdgpu 0000:33:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available Apr 6 12:52:42 rct14s kernel: [ 5.481833] amdgpu 0000:33:00.0: amdgpu: SMU is initialized successfully! Apr 6 12:52:42 rct14s kernel: [ 5.502494] snd_hda_intel 0000:33:00.1: bound 0000:33:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) Apr 6 12:52:42 rct14s kernel: [ 5.616930] kfd kfd: amdgpu: Allocated 3969056 bytes on gart Apr 6 12:52:42 rct14s kernel: [ 5.617025] amdgpu: sdma_bitmap: 3 Apr 6 12:52:42 rct14s kernel: [ 5.662355] amdgpu: HMM registered 1024MB device memory Apr 6 12:52:42 rct14s kernel: [ 5.662929] amdgpu: SRAT table not found Apr 6 12:52:42 rct14s kernel: [ 5.662931] amdgpu: Virtual CRAT table created for GPU Apr 6 12:52:42 rct14s kernel: [ 5.663069] amdgpu: Topology: Add dGPU node [0x1681:0x1002] Apr 6 12:52:42 rct14s kernel: [ 5.663072] kfd kfd: amdgpu: added device 1002:1681 Apr 6 12:52:42 rct14s kernel: [ 5.663086] amdgpu 0000:33:00.0: amdgpu: SE 1, SH per SE 2, CU per SH 6, active_cu_number 12 Apr 6 12:52:42 rct14s kernel: [ 5.663187] amdgpu 0000:33:00.0: amdgpu: ring gfx_0.0.0 uses VM inv eng 0 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663188] amdgpu 0000:33:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663189] amdgpu 0000:33:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663190] amdgpu 0000:33:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 5 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663191] amdgpu 0000:33:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 6 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663192] amdgpu 0000:33:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 7 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663193] amdgpu 0000:33:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 8 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663193] amdgpu 0000:33:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 9 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663194] amdgpu 0000:33:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 10 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663195] amdgpu 0000:33:00.0: amdgpu: ring kiq_2.1.0 uses VM inv eng 11 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663196] amdgpu 0000:33:00.0: amdgpu: ring sdma0 uses VM inv eng 12 on hub 0 Apr 6 12:52:42 rct14s kernel: [ 5.663197] amdgpu 0000:33:00.0: amdgpu: ring vcn_dec_0 uses VM inv eng 0 on hub 1 Apr 6 12:52:42 rct14s kernel: [ 5.663198] amdgpu 0000:33:00.0: amdgpu: ring vcn_enc_0.0 uses VM inv eng 1 on hub 1 Apr 6 12:52:42 rct14s kernel: [ 5.663198] amdgpu 0000:33:00.0: amdgpu: ring vcn_enc_0.1 uses VM inv eng 4 on hub 1 Apr 6 12:52:42 rct14s kernel: [ 5.663199] amdgpu 0000:33:00.0: amdgpu: ring jpeg_dec uses VM inv eng 5 on hub 1 Apr 6 12:52:42 rct14s kernel: [ 5.664554] [drm] Initialized amdgpu 3.52.0 20150101 for 0000:33:00.0 on minor 0 Apr 6 12:52:42 rct14s kernel: [ 5.672123] fbcon: amdgpudrmfb (fb0) is primary device Apr 6 12:52:42 rct14s kernel: [ 5.774645] amdgpu 0000:33:00.0: [drm] fb0: amdgpudrmfb frame buffer device