[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

            Bug ID: 107946
           Summary: AMDGPU regression, multi-head not working on 4.18,
                    4.19RC3, but does on 4.16
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: dave@locochino.com

Created attachment 141576
  --> https://bugs.freedesktop.org/attachment.cgi?id=141576&action=edit
dmesg output on a broken system, using kernel 4.19_RC3

Multi-head on AMD Vega is not working on kernel 4.18 or 4.19RC, but works fine
on 4.16

I'm stuck at kernel 4.16 with my hardware, current stable kernels leave me with
just one display working.

Attaching dmesg output from 4.16, 4.18, and 4.19_RC3

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #1 from Dave Johnson <dave@locochino.com> ---
Created attachment 141577
  --> https://bugs.freedesktop.org/attachment.cgi?id=141577&action=edit
dmesg output from a working system, kernel 4.16

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #2 from Dave Johnson <dave@locochino.com> ---
Created attachment 141578
  --> https://bugs.freedesktop.org/attachment.cgi?id=141578&action=edit
dmesg output from broken system, kernel 4.18

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #3 from Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> ---
Please post an Xorg log along with what distro/desktop environment you're
using. It may also help if you can post another 4.19 dmesg log with drm.debug=6
in your bootline.

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #4 from Dave Johnson <dave@locochino.com> ---
Uploading 4.19_RC5 dmesg w/ drm.debug=6 set, Xorg log

Also, here's more info about my setup:

+OpenSuSE Tumbleweed
  -at this time there are no 3rd-party or non-foss additions
+KDE
  -Plasma 5.13.5
  -Frameworks 5.49.0
+Radeon RX Vega 54
  -Asus Strix
  -ROG-STRIX-RXVEGA64-O8G-GAMING
  -Part# 90YV0B00-M0NA00
+MiniDP works
+DVI port does not work
  -Except on older 4.16 of course

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #5 from Dave Johnson <dave@locochino.com> ---
Created attachment 141727
  --> https://bugs.freedesktop.org/attachment.cgi?id=141727&action=edit
dmesg with drm.debug=6 set at boot time

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #6 from Dave Johnson <dave@locochino.com> ---
Created attachment 141728
  --> https://bugs.freedesktop.org/attachment.cgi?id=141728&action=edit
Xorg log

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

--- Comment #7 from Dave Johnson <dave@locochino.com> ---
This has been resolved for me in the current 4.19 stable build.  Thanks!

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[Bug 107946] AMDGPU regression, multi-head not working on 4.18, 4.19RC3, but does on 4.16

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https://bugs.freedesktop.org/show_bug.cgi?id=107946

Alex Deucher <alexdeucher@gmail.com> changed:

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

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