[Bug 99779] Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)

[Bug 99779] Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99779

            Bug ID: 99779
           Summary: Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank
                    Screen after suspend (displayport link issues)
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: brookskd@gmail.com

Created attachment 129527
  --> https://bugs.freedesktop.org/attachment.cgi?id=129527&action=edit
dmesg 4.9.8

If I shut my laptop lit it suspends, then when opening the lid and resuming I
get a blank screen and am unable to get the display to work again unless I
reboot.  I can ssh into computer and I get displayport link errors in the
attached dmesg log.

This issue does not occur if I use the radeon kernel module instead of amdgpu.

This seems very similar to bug 90320 but I filed this one because it is amdgpu
not radeon:
https://bugs.freedesktop.org/show_bug.cgi?id=90320

I've also attached the Xorg.0.log but it does not have any errors indicated. 
It indicates successful exit because I stopped the server over ssh and tried to
restart gdm a few times which is why there are multiple displayport link status
failed messages in dmesg.

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[Bug 99779] Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99779

--- Comment #1 from Kyle Brooks <brookskd@gmail.com> ---
Created attachment 129528
  --> https://bugs.freedesktop.org/attachment.cgi?id=129528&action=edit
Xorg log

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[Bug 99779] Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99779

Kyle Brooks <brookskd@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=90320

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[Bug 99779] Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99779

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

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

--- Comment #2 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/132.

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