[Bug 106617] monitor often unable to get out from dpms off - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 106617] monitor often unable to get out from dpms off
Date: Tue, 22 May 2018 10:56:44 +0000	[thread overview]
Message-ID: <bug-106617-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=106617

            Bug ID: 106617
           Summary: monitor often unable to get out from dpms off
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: sylvain.bertrand@gmail.com

I have a iiyama gmaster monitor connected to an AMD TAHITI XT board using DP.
When the xserver switches it to dpms off, it has an hard time to get out of
this state: most of the time, the monitor is switched on but I get a "no
signal" error displayed by the monitor, and the graphic stack is trying to
restore the signal in a loop, unsuccessfully. That, whatever the refresh
rate:60Hz/120Hz/144Hz (1920x1080).
I provide the xserver log and the kernel.log while the components try to
restore the video signal.
linux amd-staging-next, drm git, llvm git, mesa git, xserver git,
xf86-video-amdgpu git, from this 20th of may.

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