https://bugs.freedesktop.org/show_bug.cgi?id=108521
--- Comment #31 from Alex Deucher <[email protected]> ---
(In reply to Robert Strube from comment #30)
> Hi Alex,
>
> Thanks for the reply. I wanted to clarify an important point: When I
> disabled PM completely and ACPI completely, I did not see any PCI resource
> issues AND the eGPU initialized successfully.
>
> acpi=off apm=off amdgpu.dpm=0 amdgpu.aspm=0 amdgpu.runpm=0 amdgpu.bapm=0
the only relevant items here are acpi=off and amdgpu.dpm=0. Did you test them
independently or just together? setting dpm=0 is irrelevant if acpi=off since
there will be no resource restrictions. You need to test them independently.
>
> I've been working with another user that has the exact same system (XPS
> 9575) and an RX 580 and is having the same issues. He was actually able to
> get the eGPU initialized by passing in PCI=noacpi rather than completely
> disabling ACPI as a whole. I'll double check with him to see if he can post
> his dmesg log - because I'm not sure if the PCI resource issues are present
> under those circumstances.
looks like the same issue as yours. PCI resources not getting assigned.
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