Comment # 4 on bug 101976 from Pablo Estigarribia

maybe this is the error (seen on journal -ab log): 

jul 30 20:35:22 bpowerhome kernel: amdgpu 0000:01:00.0: GPU fault detected: 147
0x0c984802
jul 30 20:35:22 bpowerhome kernel: amdgpu 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00154D93
jul 30 20:35:22 bpowerhome kernel: amdgpu 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x08024001
jul 30 20:35:22 bpowerhome kernel: amdgpu 0000:01:00.0: VM fault (0x01, vmid 4)
at page 1396115, read from 'TC0' (0x54433000) (36)