[Bug 104281] black / corrupted screen when resuming from S3 [AMDGPU]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104281

            Bug ID: 104281
           Summary: black / corrupted screen when resuming from S3
                    [AMDGPU]
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: carlo at caione.org

Created attachment 136199
  --> https://bugs.freedesktop.org/attachment.cgi?id=136199&action=edit
journal_suspend_resume_corrupted_screen

Hardware is AMD Bristol Ridge chipset with AMD A10-9620P RADEON R5 SoC.

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Carrizo (rev ca)
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 699f
(rev ff)

Kernel is latest Linus master (4.15.0-rc3) compiled with
CONFIG_DRM_AMD_DC_PRE_VEGA=y

When resuming from suspend most of the times the screen is black / corrupted. I
can still SSH into the system.

In attachment the full log, including suspend + resume.

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