https://bugs.freedesktop.org/show_bug.cgi?id=109232

            Bug ID: 109232
           Summary: Raven Ridge with ABM enabled turns display off
                    erroneously on mostly black colored windows
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: samantham@posteo.net

Created attachment 142986
  --> https://bugs.freedesktop.org/attachment.cgi?id=142986&action=edit
xorg log

With ABM off and brightness at the minimum (0), the screen is on but low
brightness. If you set ABM to 4 and then maximize a black terminal window, the
screen will for all intents and purposes turn itself off. When going back to a
bright screen it will turn on again. By on and off here I don't mean actually
off, but the brightness is almost not visible.

I am using a Lenovo A485

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