[Bug 109440] Radeon RX 580 fails to initialize

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109440

            Bug ID: 109440
           Summary: Radeon RX 580 fails to initialize
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/AMDgpu-pro
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: bogdan.mustiata at gmail.com

Created attachment 143204
  --> https://bugs.freedesktop.org/attachment.cgi?id=143204&action=edit
all logs

Setup: Lenovo X230 laptop with an integrated graphic card, the RX 580 is
connected via a gdc beast using an express card connector.

Drivers: latest at current date: amdgpu-pro-18.50-708488-ubuntu-18.04
Kernel: Linux germanium 4.18.0-13-generic #14~18.04.1-Ubuntu SMP Thu Dec 6
14:09:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

It seems the dkms fails to build on ubuntu, and the system goes to a blank
screen after loading. I can still switch to a terminal (that's how I obtained
the logs). The kernel crashes, and when trying to reboot it even kernel panics.

The system will never boot to an UI again unless I uninstall the amdgpu pro
drivers, even if at boot time the external graphic card is not connected
anymore. (expresscard is unplugged from laptop)

I attached the logs.

I was not able to install the amdgpu-pro-18.50 on any kernel version, they all
fail to compile the dkms driver (I went from 4.15 and up to 4.20, using ukuu,
and for 4.15 I also tried the one from the supported ubuntu). amdgpu-pro-18.40
builds on 4.15, but fails to load the firmware. There is no stacktrace just smu
failed to load firmware.

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