(In reply to smoki from comment #10)
>  Hmmm, do you have any GPU faults with it? Check dmesg.
> 
> As this is what is this bug about, those two games runs but introduce
> constant GPU faults.

You are right:

[18409.862642] VM fault (0x02, vmid 5) at page 0, read from 'TC4' (0x54433400)
(136)
[18409.917406] amdgpu 0000:01:00.0: GPU fault detected: 147 0x000a8802
[18409.917409] amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x00000000
[18409.917410] amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0A088002

The GPU is R9 390.