[Bug 196125] New: [Regression] AMD Radeon RX 480 flickering on HDMI port with Linux 4.11.4 - bugzilla-daemon

From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 196125] New: [Regression] AMD Radeon RX 480 flickering on HDMI port with Linux 4.11.4
Date: Mon, 19 Jun 2017 20:49:12 +0000	[thread overview]
Message-ID: <bug-196125-2300@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=196125

            Bug ID: 196125
           Summary: [Regression] AMD Radeon RX 480 flickering on HDMI port
                    with Linux 4.11.4
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.11.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: contact@florentflament.com
        Regression: No

Using a Sapphire AMD Radeon RX 480 Graphic Card with the amdgpu driver. Since a
Linux Kernel upgrade from 4.10.6 to 4.11.4, I'm experiencing screen flickering
(full black or white screen blinking) when the picture on the screen in
changing (video, moving windows). There is no flickering when displaying a
static picture. The flickering occurs when the screen (with a DVI connector) is
connected to the Graphic Card's HDMI port. There is no flickering when the
screen is plugged to one of the Radeon's Display ports (with a HDMI to Display
port adapter). This flickering didn't occur with Kernel 4.10.6.

$ cat /etc/fedora-release 
Fedora release 25 (Twenty Five)

$ uname -a
Linux amn 4.11.4-200.fc25.x86_64 #1 SMP Wed Jun 7 18:28:00 UTC 2017 x86_64
x86_64 x86_64 GNU/Linux

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