[Bug 106592] New: 2nd GPU / screen not detected after driver / xorg update

[Bug 106592] New: 2nd GPU / screen not detected after driver / xorg update

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https://bugs.freedesktop.org/show_bug.cgi?id=106592

            Bug ID: 106592
           Summary: 2nd GPU / screen not detected after driver / xorg
                    update
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: atila.neves-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

This is on Arch Linux. After an update, my 2nd monitor was no longer detected.
I downgraded nouveau to the Arch package version 1.0.15-2 (from 1.0.15-3) and
the problem went away. I also had to downgrade xorg-server due to dependency
issues, so it's possible the problem could be there and not in nouveau itself.
My xorg-server package is now xorg-server-1.19.6+13+gd0d1a694f-2, down from
xorg-server-1.20.0-2.

Both monitors work fine in the downgraded configuration, but only one works
with the latest updates.

When things weren't working, /var/log/Xorg.0.log showed the message "failed to
find screen to remove" for one of the GPUs. This is no longer the case after
the downgrade.

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[Bug 106592] 2nd GPU / screen not detected after driver / xorg update

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https://bugs.freedesktop.org/show_bug.cgi?id=106592

--- Comment #1 from lukasw41-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
This might be the same problem:
https://bugs.freedesktop.org/show_bug.cgi?id=106586

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[Bug 106592] 2nd GPU / screen not detected after driver / xorg update

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https://bugs.freedesktop.org/show_bug.cgi?id=106592

--- Comment #2 from Atila Neves <atila.neves-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
It might be the same problem, yes. It definitely looks similar.

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[Bug 106592] 2nd GPU / screen not detected after driver / xorg update

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https://bugs.freedesktop.org/show_bug.cgi?id=106592

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

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

--- Comment #3 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/434.

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