Created attachment 145510 [details]
full dmesg

We are working with a new consumer laptop based on Ryzen 7 3700U.

amdgpu device:

03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c1) (prog-if 00 [VGA controller])

Upon suspend/resume (this platform uses s2idle), the pre-suspend image can be seen on screen, but the display is totally hung. These kernel messages can be seen in the resume process:

[  281.293412] [drm] PCIE GART of 1024M enabled (table at 0x000000F400900000).
[  281.293465] [drm] PSP is resuming...
[  281.313495] [drm] reserve 0x400000 from 0xf47fc00000 for PSP TMR
[  281.316389] [drm] psp command failed and response status is (0x7)
[  281.603206] ata1: SATA link down (SStatus 0 SControl 300)
[  282.538559] amdgpu: [powerplay] dpm has been enabled
[  282.748112] [drm] VCN decode and encode initialized successfully(under DPG Mode).
[  282.748141] amdgpu 0000:03:00.0: ring gfx uses VM inv eng 0 on hub 0
[  282.748143] amdgpu 0000:03:00.0: ring comp_1.0.0 uses VM inv eng 1 on hub 0
[  282.748144] amdgpu 0000:03:00.0: ring comp_1.1.0 uses VM inv eng 4 on hub 0
[  282.748146] amdgpu 0000:03:00.0: ring comp_1.2.0 uses VM inv eng 5 on hub 0
[  282.748147] amdgpu 0000:03:00.0: ring comp_1.3.0 uses VM inv eng 6 on hub 0
[  282.748148] amdgpu 0000:03:00.0: ring comp_1.0.1 uses VM inv eng 7 on hub 0
[  282.748150] amdgpu 0000:03:00.0: ring comp_1.1.1 uses VM inv eng 8 on hub 0
[  282.748151] amdgpu 0000:03:00.0: ring comp_1.2.1 uses VM inv eng 9 on hub 0
[  282.748152] amdgpu 0000:03:00.0: ring comp_1.3.1 uses VM inv eng 10 on hub 0
[  282.748154] amdgpu 0000:03:00.0: ring kiq_2.1.0 uses VM inv eng 11 on hub 0
[  282.748155] amdgpu 0000:03:00.0: ring sdma0 uses VM inv eng 0 on hub 1
[  282.748157] amdgpu 0000:03:00.0: ring vcn_dec uses VM inv eng 1 on hub 1
[  282.748157] amdgpu 0000:03:00.0: ring vcn_enc0 uses VM inv eng 4 on hub 1
[  282.748158] amdgpu 0000:03:00.0: ring vcn_enc1 uses VM inv eng 5 on hub 1
[  282.748160] amdgpu 0000:03:00.0: ring vcn_jpeg uses VM inv eng 6 on hub 1
[  283.133649] [drm] Fence fallback timer expired on ring sdma0
[  283.261764] [drm] Fence fallback timer expired on ring gfx
[  283.261809] amdgpu 0000:03:00.0: [drm:amdgpu_ib_ring_tests] *ERROR* IB test failed on gfx (-22).
[  283.261814] [drm:process_one_work] *ERROR* ib ring test failed (-22).

This has been reproduced on Linux 5.2 and linus master as of today. As this is a brand new platform there is no previous known working version. It does suspend/resume fine under Windows 10.

Please let me know how I can help further. We'd be happy to ship a product sample to AMD developers for diagnosis.