[Advice Request] Trying to debug amdgpu fatal error

[Daniel Moran]

Also, to clarify... if I move it into a regular slot, turn off the eGPU it
works as expected.
Tested with Intel iGPU enabled and disabled, made sure i915 loaded without
error and can connect display to it.



Again, thank you in advance for any time/support offered.

Respectfully,

Daniel S. Moran (garwynn)
PC Hardware Editor - XDA-Developers
Phone: 1-559-316-0760/+81-90-5484-4155
Article Links: http://www.xda-developers.com/author/garwynn
E-mail: xdagarwynn at gmail.com | Twitter: @xdagarwynn

On Sat, Apr 7, 2018 at 3:58 PM, Daniel Moran <xdagarwynn at gmail.com> wrote:

> Hello all,
>
> I've got a Powercolor Red Devil Vega 56 here that I'm trying to get
> working in eGPU mode.
> I think on the BIOS/hardware side it's now all fleshed out.
> Now I'm at a point where amdgpu tries to init and reaches a fatal error.
>
> Set loglevel=8 doesn't get any additional messages.
> Here's what it does report (full dmesg attached):
>
> [  429.005909] [drm] amdgpu kernel modesetting enabled.
> [  429.006080] [drm] initializing kernel modesetting (VEGA10 0x1002:0x687F
> 0x148C:0x2388 0xC3).
> [  429.006082] amdgpu 0000:16:00.0: Fatal error during GPU init
> [  429.006155] amdgpu: probe of 0000:16:00.0 failed with error -12
>
> Using the following commands to unload & reload for testing. Since it's as
> an eGPU I'm using the i7-7700K iGPU (i915 module) as the primary and these
> commands work in terminal without requiring a reboot.
>
> sudo rmmod amdgpu
> sudo modprobe -v amgpu
>
> Pulled the UMR and tried to make, fails on Cmake. I'll attach log in a
> text.
> Also will attach a full dmesg and lspci dump. uname -a below:
> *Linux testbox 4.15.15-041515-generic #201803311331 SMP Sat Mar 31
> 17:34:21 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux*
>
> Any other ideas on how I can debug this further? Feel I'm so close, don't
> want to let this go.
> Thank you in advance for your time.
>
> Respectfully,
>
> Daniel S. Moran (garwynn)
> PC Hardware Editor - XDA-Developers
> Phone: 1-559-316-0760/+81-90-5484-4155
> Article Links: http://www.xda-developers.com/author/garwynn
> E-mail: xdagarwynn at gmail.com | Twitter: @xdagarwynn
>
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