[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107072

            Bug ID: 107072
           Summary: 4k hdmi monitor stays black on kaveri [regression]
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: linuxhippy at gmail.com

After updating Fedora 28 on my Kaveri System (A8-7650K) with AMDGPU enabled
from 4.16.16 to 4.17.2 my 4K HDI display stays black (the FHD display connected
via HDMI continues to work as expected).

Please let me know what kind of information is required find the root cause.

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