[Bug 201139] New: amdgpu: [drm] enabling link 1 failed: 15 (vega)

[Bug 201139] New: amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

Michel Dänzer (michel@daenzer.net) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |harry.wentland@amd.com,
                   |                            |nicholas.kazlauskas@amd.com

--- Comment #1 from Michel Dänzer (michel@daenzer.net) ---
Please attach the full dmesg output.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #2 from Aleksandr Mezin (mezin.alexander@gmail.com) ---
Created attachment 279279
  --> https://bugzilla.kernel.org/attachment.cgi?id=279279&action=edit
Kernel log

Today I've seen this issue again on 4.19.

Monitors were turned off by dpms, only one of them correctly woke up. Another
one turned on, but was only showing a black screen. What's more interesting is
when I turned off that one with the black screen, another one started showing
the black screen. And when I switched second monitor on again - the black
screen moved back to it.

In kernel log again:
[46082.161234] [drm] enabling link 1 failed: 15
[46118.947574] [drm] enabling link 0 failed: 15

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

Aleksandr Mezin (mezin.alexander@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.19-rc3                    |4.19

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #3 from Aleksandr Mezin (mezin.alexander@gmail.com) ---
Created attachment 279281
  --> https://bugzilla.kernel.org/attachment.cgi?id=279281&action=edit
journalctl --user (Xorg log is here)

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #4 from Aleksandr Mezin (mezin.alexander@gmail.com) ---
Also tried loggig out & in, restarting GDM, changing display configurations in
Gnome. Even in another VT and in GDM, one monitor was showing only a black
screen. Only reboot made it work again.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #5 from Harry Wentland (harry.wentland@amd.com) ---
It looks like link training failed. Can you check on your monitor's OSD whether
DisplayPort or Auto is selected as input? I've seen this behavior on some
monitors when Auto input was selected. If so try selecting the DP input and see
if that helps.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #6 from Aleksandr Mezin (mezin.alexander@gmail.com) ---
On both monitors there are no "Auto" input option. DisplayPort is selected on
both of them.

Also, I've never seen similar problem on RX 580 with the same monitors, either
on Linux or Windows.

On Windows I frequently see notifications about "link failure" or something
like that, but on Windows the driver/card always recovers successfully (so no
other problems except the annoying notification).

Also, more details, maybe it wasn't clear:
1. After dpms suspend, both monitors woke up, but one of them was showing black
screen (but no "no signal" osd or anything like that). No mouse pointer too.
But I was able to move the cursor away from the working monitor. xrandr and
Gnome settings were showing both monitors too.
2. I turned that "non-working" monitor off. Now the previously working monitor
only shows the black screen too.
3. I turned on the second monitor. Black screen moved to it, first monitor
started working completely fine.
4. I thought that it's maybe a bug in compositor, so I tried switching VTs,
logging out, restarting GDM. It didn't help.
5. Logged in back to Gnome. By changing settings/turning displays on and off I
somehow managed to "move" the black screen to the first monitor, and the second
one started working. But exactly one monitor (either first or second one) was
always showing the black screen.
6. Rebooted, both monitors started working fine

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #7 from Aleksandr Mezin (mezin.alexander@gmail.com) ---
Created attachment 279403
  --> https://bugzilla.kernel.org/attachment.cgi?id=279403&action=edit
Kernel log

Encountered the same issue (monitor turned on, but shows black screen only)
just now, on 4.19.1.
But now the error message is different:

[ 8154.090497] [drm:wait_for_reset_trigger_to_occur.isra.12 [amdgpu]] *ERROR*
TG counter is not moving!
[ 8154.090533] [drm:wait_for_reset_trigger_to_occur.isra.12 [amdgpu]] *ERROR*
GSL: Timeout on reset trigger!

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

Nick Price (nick@spun.io) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nick@spun.io

--- Comment #8 from Nick Price (nick@spun.io) ---
Seeing the same behavior on 5.3.0 fairly regularly - is there any other info I
could provide to help?

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

John Andrew McInnes (s2@forceway.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |s2@forceway.com

--- Comment #9 from John Andrew McInnes (s2@forceway.com) ---
openSUSE Tumbleweed x86_64
Kernel: 5.5.4-1-default 
Radeon RX 480
LG Ultra HD monitor
KDE Plasma

[drm] enabling link 1 failed: 15

I am seeing this also only I have just a single monitor. It will say no signal,
and it turns off. Moving the mouse or pressing the keyboard doesn't turn the
monitor on. I have to turn it on using the power button.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

Christian Thäter (ct.kernel.org@pipapo.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ct.kernel.org@pipapo.org

--- Comment #10 from Christian Thäter (ct.kernel.org@pipapo.org) ---
Created attachment 288335
  --> https://bugzilla.kernel.org/attachment.cgi?id=288335&action=edit
Further info, kernel log

I had some hard crashes recently (screen frozen or blank), sometimes as much as
once a day, sometimes the System runs for days to weeks.

Today one screen didn't come up after I turned it on and i found a smoking gun
in the attached dmesg. Maybe thats helpful.

System is AMD Ryzen 1700, Debian Buster, self built Kernel.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

--- Comment #11 from Adarion from userland (h_mailinglists@posteo.de) ---
Potentially related
https://bugzilla.kernel.org/show_bug.cgi?id=208115

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

Michal Turecki (turecki@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |turecki@gmail.com

--- Comment #12 from Michal Turecki (turecki@gmail.com) ---
Created attachment 293911
  --> https://bugzilla.kernel.org/attachment.cgi?id=293911&action=edit
Another instance on 5.9.11-3-MANJARO #1 SMP PREEMPT

Same problem happens often on my desktop PC when resuming from power saving
mode with monitor switched off. Like in other cases, switching monitor off/on
helps but all open windows although seemingly restored to the original size
before power saving, must have been temporarily resized to 640x480 during DP
resolution negotiation which results in XFCE compiz (another, unrelated bug)
shrinking them to 640x480 after moving for example.

Issue occurs very often, maybe about 1 of 5 times power saving mode is on. I am
happy to do some more debugging if pointed to the right direction how to do it.

Some specs:
AMD RX5700 (Navi 10)
MSI MAG321CURV monitor.

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[Bug 201139] amdgpu: [drm] enabling link 1 failed: 15 (vega)

[bugzilla-daemon]

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

James Ettle (james@ettle.org.uk) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |james@ettle.org.uk

--- Comment #13 from James Ettle (james@ettle.org.uk) ---
Also seen here under kernel 5.9.12 with a Ryzen 3400G and a Samsung LU32H850UM
on DisplayPort:

[drm] enabling link 1 failed: 15

This is somewhat intermittent, and it comes back after power-cycling the
monitor (which is configured with manual input selection).

Not seen with Dell or Lenovo monitors on same port.

I'll try a different DisplayPort cable just to check...

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