[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

            Bug ID: 107880
           Summary: Regression: System fails to boot on raven ridge 4.18
                    vs 4.19 rc
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: marvin.damschen at gullz.de

Created attachment 141500
  --> https://bugs.freedesktop.org/attachment.cgi?id=141500&action=edit
Successful boot with 4.18.7 on Raven Ridge

System boots fine with kernel 4.18 on a Raven Ridge (AMD Ryzen 5 2500U, Lenovo
E485, latest firmware from linux-firmware.git), but boot fails with kernel 4.19
(tested rc2 and rc3). System hangs after "fb: switching to amdgpudrmfb from EFI
VGA".
I am unable to obtain any logs of the crash (LUKS encryption might be the
reason?). I will attach a log of a working boot with 4.18.7, please let me know
how to provide more info.

Thank you
Marvin

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