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From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 201139] New: amdgpu: [drm] enabling link 1 failed: 15 (vega)
Date: Sat, 15 Sep 2018 14:29:33 +0000	[thread overview]
Message-ID: <bug-201139-2300@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=201139

            Bug ID: 201139
           Summary: amdgpu: [drm] enabling link 1 failed: 15 (vega)
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.19-rc3
          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: mezin.alexander@gmail.com
        Regression: No

My setup:
- RX Vega 64
- Arch Linux
- GNOME 3.28.3 on Xorg 1.20.1
- modesetting Xorg driver
- LG 27UD69P and Dell P2415Q

I have "screen blanking" enabled in Gnome. Sometimes (very rarely) one display
(Dell, connected to 2nd DisplayPort) doesn't wake up correctly. It turns on,
shows only black screen, then quickly shows "no signal" message. In kernel log
I see:

[39215.008773] [drm] enabling link 1 failed: 15

If I manually turn the display off and on, it starts to work.

Can't tell if it is a regression (hardly it is) because on 4.18 and earlier
screen blanking just makes the driver hang:
https://bugzilla.kernel.org/show_bug.cgi?id=200531

I've never seen a similar issue on Windows on the same machine.
If I'm not mistaken, I've seen the same issue with Gnome on Wayland too (but
I'm not sure).

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             reply	other threads:[~2018-09-15 14:29 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-15 14:29 bugzilla-daemon [this message]
2018-09-17 10:25 ` [Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega) bugzilla-daemon
2018-11-01  8:38 ` bugzilla-daemon
2018-11-01  8:38 ` bugzilla-daemon
2018-11-01  8:39 ` bugzilla-daemon
2018-11-01  8:56 ` bugzilla-daemon
2018-11-01 12:57 ` bugzilla-daemon
2018-11-02 23:26 ` bugzilla-daemon
2018-11-10  2:11 ` bugzilla-daemon
2020-01-01 18:46 ` bugzilla-daemon
2020-02-24  0:36 ` bugzilla-daemon
2020-04-10 20:09 ` bugzilla-daemon
2020-06-25 17:33 ` bugzilla-daemon
2020-12-03  5:24 ` bugzilla-daemon
2020-12-12 10:39 ` bugzilla-daemon

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