https://bugs.freedesktop.org/show_bug.cgi?id=108570

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTABUG

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to TestMode11 from comment #0)
> On RX560 I get the following in dmesg
> 
> [    8.426625] kfd kfd: skipped device 1002:67ef, PCI rejects atomics

That message is from kfd.  It's for ROCm.  Unrelated to DC

> 
> Then in Weston start log I do not see "DRM supports atomic modesetting". 
> 
> Does this mean that DC is not active? Do AMDGPU DC and atomic modesetting
> only work with PCI Express 3.0?

No, DC has nothing to do with pci atomics.  DC is enabled:
[    8.690697] [drm] Display Core initialized with v3.2.02!

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