[Bug 111733] AMD Navi10 GPU randomly blanks display connected through HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111733

            Bug ID: 111733
           Summary: AMD Navi10 GPU randomly blanks display connected
                    through HDMI
           Product: DRI
           Version: DRI git
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: venemo at msn.com

There is an AMD Radeon RX 5700XT (reference card, made by Sapphire), which has
two displays connected: one through HDMI, another through DP. The problem: the
GPU sometimes randomly blanks the HDMI display while the computer is in use.

Hardware:
AMD Radeon RX 5700XT (reference card, made by Sapphire)
Dell U2718Q (two of them: one through HDMI, other through DisplayPort)
AMD Ryzen 7 3700X
MSI B450i

Software:
Fedora Workstation 30 x86_64
Gnome 3.32.2
LLVM 9 RC2
Mesa 19.2 RC1

Could be related to this bug:
https://bugs.freedesktop.org/show_bug.cgi?id=111481

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