[Bug 104109] New: After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[Bug 104109] New: After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=104109

            Bug ID: 104109
           Summary: After upgrade to kernel 4.13.16-302 one monitor in a
                    two monitor displayport setup isn't working anymore.
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: torsten-LNXMr1lEAG4dnm+yROfE0A@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 135975
  --> https://bugs.freedesktop.org/attachment.cgi?id=135975&action=edit
kernel log (4.13.16-300)

This issue comes in two parts which may be related to each other.
First when upgrading to kernel 4.13.16-300 I began to have issues with one
monitor when it went into sleep mode. I then saw errors like "disp: outp
03:0006:0f88: training failed". Checking xrandr showed that the monitor
"existed" but it only showed a black screen.
This behaviour was tested on both fedora 27 and ubuntu 16.04 LTS with all
updates installed.

The dual monitor setup was working prior to updating to kernel 4.13.16-300.


When doing a kernel upgrade to 4.13.16-302 this monitor was not even found
anymore by the nouveau driver.

I will attach the following files:
* kernel log 4.13.16-300
* kernel log 4.13.16-302
* xrandr when running kernel 4.13.16-300
* xrandr when running kernel 4.13.16-302

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[Bug 104109] After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=104109

--- Comment #1 from torsten-LNXMr1lEAG4dnm+yROfE0A@public.gmane.org ---
Created attachment 135976
  --> https://bugs.freedesktop.org/attachment.cgi?id=135976&action=edit
kernel log (4.13.16-302)

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[Bug 104109] After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=104109

--- Comment #2 from torsten-LNXMr1lEAG4dnm+yROfE0A@public.gmane.org ---
Created attachment 135977
  --> https://bugs.freedesktop.org/attachment.cgi?id=135977&action=edit
xrandr output

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[Bug 104109] After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=104109

--- Comment #3 from torsten-LNXMr1lEAG4dnm+yROfE0A@public.gmane.org ---
Created attachment 135978
  --> https://bugs.freedesktop.org/attachment.cgi?id=135978&action=edit
xrandr output

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[Bug 104109] After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore.

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=104109

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #4 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- 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/xorg/driver/xf86-video-nouveau/issues/387.

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