[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111244

            Bug ID: 111244
           Summary: amdgpu kernel 5.2 blank display after resume from
                    suspend
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: cspack at verizon.net

Created attachment 144901
  --> https://bugs.freedesktop.org/attachment.cgi?id=144901&action=edit
kernel log

Model: Lenovo Ideapad S340 15"
CPU: AMD Ryzen 5 3500U

Starting with kernel 5.2, laptop has a blank display after resuming from
suspend. Problem doesn't appear with recent kernels up to 5.1.16. Attached is a
kernel log and git bisect logs.

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