[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

            Bug ID: 109239
           Summary: Polaris10: Periodic random black screens for 1-2
                    seconds
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: rocketraman@gmail.com

Created attachment 142997
  --> https://bugs.freedesktop.org/attachment.cgi?id=142997&action=edit
Xorg.0.log with modesetting

I have 3 Dell WQHD Screens (2560x1440) screens, connected to a Radeon RX580
(XFX, RX-580 GTS Black Edition, 1425 MHz 8GB), running on Fedora 29.

My kernel is:

Linux edison 4.19.13-300.fc29.x86_64 #1 SMP Sat Dec 29 22:54:28 UTC 2018 x86_64
x86_64 x86_64 GNU/Linux

On 2/3 monitors I get periodic random black screens for 1-2 seconds. The
display comes back and all appears normal after this happens.

I have tried both with and without modesetting enabled. Nothing at all appears
in  either the kernel log when this happens, or in Xorg.0.log. I have attached
complete Xorg.0.log's and the relevant parts of dmesg (from boot to the very
last drm-related message).

I was sure this was a hardware issue, and after a debugging process with XFX
support in which they had me swapping monitors and cables, they RMAed my card
and sent me a new one. However, the new card has very similar behavior (the old
card seemed to black screen only one monitor, the new seems to do two of them,
but in exactly the same way, and I have also updated my kernel and OS since
then, so its possible the hardware is completely unrelated to the minor change
in behavior).

Given the change in hardware, it seems likely to me this is a driver bug rather
than a hardware one.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #1 from Raman Gupta <rocketraman@gmail.com> ---
Created attachment 142998
  --> https://bugs.freedesktop.org/attachment.cgi?id=142998&action=edit
Xorg.0.log without modesetting

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #2 from Raman Gupta <rocketraman@gmail.com> ---
Created attachment 142999
  --> https://bugs.freedesktop.org/attachment.cgi?id=142999&action=edit
dmesg with modesetting

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #3 from Raman Gupta <rocketraman@gmail.com> ---
Created attachment 143000
  --> https://bugs.freedesktop.org/attachment.cgi?id=143000&action=edit
dmesg without modesetting

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #142997|text/x-log                  |text/plain
          mime type|                            |

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #142998|text/x-log                  |text/plain
          mime type|                            |

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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[-- Attachment #1.1: Type: text/plain, Size: 427 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=109239

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #142999|text/x-log                  |text/plain
          mime type|                            |

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 427 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=109239

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #143000|text/x-log                  |text/plain
          mime type|                            |

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
When you wrote "modesetting", you meant "DC". So the problem is the same with
or without DC?

Does it also happen with the Xorg modesetting driver instead of
xf86-video-amdgpu, or with a Wayland compositor such as GNOME on Wayland?

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #5 from Raman Gupta <rocketraman@gmail.com> ---
(In reply to Michel Dänzer from comment #4)
> When you wrote "modesetting", you meant "DC". So the problem is the same
> with or without DC?

Yes, DC does not make a difference.

> Does it also happen with the Xorg modesetting driver instead of
> xf86-video-amdgpu, or with a Wayland compositor such as GNOME on Wayland?

I tried it with plasma Wayland and had the same exact problem.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #6 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
FWIW, I have the same issue on both Polaris/Vega. Disabling DC on Polaris
appears to fix the problem on my side. Also, those periodic random black
screens seem to only happen with my 4K screen, I don't have this problem at
1080p.

Let me know if you need more info.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #7 from Harry Wentland <harry.wentland@amd.com> ---
If you didn't say you tried swapping monitors and cables I'd say it was a cable
issue.

Are those high refresh rate displays (120Hz+)? If so you might want to give
what's suggested in this comment a try:
https://bugs.freedesktop.org/show_bug.cgi?id=102646#c41 It would help us
diagnose the issue.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #8 from Raman Gupta <rocketraman@gmail.com> ---
Created attachment 143137
  --> https://bugs.freedesktop.org/attachment.cgi?id=143137&action=edit
Xorg.0.log with modeset ddx instead of amdgpu ddx

(In reply to Michel Dänzer from comment #4)
> Does it also happen with the Xorg modesetting driver instead of
> xf86-video-amdgpu, or with a Wayland compositor such as GNOME on Wayland?

Ok, I've tried both the modeset ddx (Xorg.0.log attached), as well as a Wayland
compositor (plasma-wayland), and both exhibit exactly the same behavior. I used
kernel setting `amdgpu.dc=0` in both cases. Unfortunately, I can't try it with
`amdgpu.dc=1` due to issue https://bugs.freedesktop.org/show_bug.cgi?id=109238.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #9 from Raman Gupta <rocketraman@gmail.com> ---
(In reply to Harry Wentland from comment #7)
> If you didn't say you tried swapping monitors and cables I'd say it was a
> cable issue.
> 
> Are those high refresh rate displays (120Hz+)? If so you might want to give
> what's suggested in this comment a try:
> https://bugs.freedesktop.org/show_bug.cgi?id=102646#c41 It would help us
> diagnose the issue.

While I believe this was directed at Samuel Pitoiset (I don't have high refresh
rate displays), I tried it anyway. Same problem occurs.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #10 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
I don't think it's a cable issue because it works fine with NVIDIA.

echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo "0" >  /sys/class/drm/card0/device/pp_dpm_mclk

Doing this doesn't fix the problem.

Anything else?

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #11 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
FWIW, it's not a cable issue, I tried to replace it, same problem.

Though, after trying with a new 4K screen the problem is "fixed".

I assume it's a screen issue, I also tried to reset settings to default for the 
old screen but the problem still occurs.

Do you need more info about that screen?

Keep in mind that the problem doesn't happen with amdgpu.dc=0 on Polaris10.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #12 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
Actually, the problem happens with that new 4K screen too, lees frequently but
still.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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[-- Attachment #1.1: Type: text/plain, Size: 525 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #13 from Raman Gupta <rocketraman@gmail.com> ---
Still having this problem with newer software:

Linux edison 5.0.16-200.fc29.x86_64 #1 SMP Tue May 14 18:27:35 UTC 2019 x86_64
x86_64 x86_64 GNU/Linux

Mesa 18.3.6-3.fc29

It seems to happen more often when using Google Hangouts, with video turned on.
However, it does not happen more often when watching YouTube videos.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

--- Comment #14 from Raman Gupta <rocketraman@gmail.com> ---
Purchased a new Radeon RX590 (made by Asus instead of XFX) and no longer have
this issue.

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[Bug 109239] Polaris10: Periodic random black screens for 1-2 seconds

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https://bugs.freedesktop.org/show_bug.cgi?id=109239

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #15 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/660.

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