[Bug 205335] New: [amdgpu] suspend / screen black after thaw

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

            Bug ID: 205335
           Summary: [amdgpu] suspend / screen black after thaw
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.3.7-arch1-1-ARCH
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: arne_woerner at yahoo.com
        Regression: No

Created attachment 285667
  --> https://bugzilla.kernel.org/attachment.cgi?id=285667&action=edit
some kernel messages regarding the amdgpu driver...

since about kernel-5.2.8 my box does not thaw properly.
during suspend it already behaves differently (the screen goes black while the
image is being written...).
first it was once per 10 thaws...
but now it became quite bad (like every second thaw)...

the GPU is a RX550:
Device: Radeon 550 Series (POLARIS12, DRM 3.33.0, 5.3.7-arch1-1-ARCH, LLVM
9.0.0) (0x699f)

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