[Bug 107880] Regression: System fails to boot on raven ridge 4.18 vs 4.19 rc

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107880

--- Comment #1 from Michel Dänzer <michel at daenzer.net> ---
(In reply to Marvin Damschen from comment #0)
> System hangs after "fb: switching to amdgpudrmfb from EFI VGA".

How long have you waited for? E.g. if a microcode file is missing, the attempt
to load it can hang for one or several minutes before timing out.


> I am unable to obtain any logs of the crash (LUKS encryption might be the
> reason?).

One possibility is to prevent the driver from loading by passing

 modprobe.blacklist=amdgpu

on the kernel command line, then you can try manually loading it with

 sudo modprobe amdgpu

and should get the full dmesg output.

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