Comment # 50 on bug 1177428 from Karl Mistelberger

(In reply to Takashi Iwai from comment #49)
> OK, now one step forward.  And it still fails to boot?

I boots, however suspend/resume still freezes:

Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring gfx uses VM inv eng 0
on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.0.0 uses VM
inv eng 1 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.1.0 uses VM
inv eng 4 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.2.0 uses VM
inv eng 5 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.3.0 uses VM
inv eng 6 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.0.1 uses VM
inv eng 7 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.1.1 uses VM
inv eng 8 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.2.1 uses VM
inv eng 9 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring comp_1.3.1 uses VM
inv eng 10 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring kiq_2.1.0 uses VM inv
eng 11 on hub 0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring sdma0 uses VM inv eng
0 on hub 1
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring vcn_dec uses VM inv
eng 1 on hub 1
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring vcn_enc0 uses VM inv
eng 4 on hub 1
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring vcn_enc1 uses VM inv
eng 5 on hub 1
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: amdgpu: ring jpeg_dec uses VM inv
eng 6 on hub 1
Oct 12 10:38:44 kernel: [drm] Fence fallback timer expired on ring sdma0
Oct 12 10:38:44 kernel: amdgpu 0000:06:00.0: [drm:amdgpu_ib_ring_tests
[amdgpu]] *ERROR* IB test failed on gfx (-110).
Oct 12 10:38:44 kernel: [drm:process_one_work] *ERROR* ib ring test failed
(-110).